Please help, this is worth 15 points!

Think back to your last normal day before everything changed due to this pandemic. What was it like? Describe the subatomic particles found in an atom, anddescribe each one. Also, describe how they relate to eachother. pls helpp find the slope of the line please help me out in optional maths (9 x + 5) - (4 x + 3) What was added to horns and other brass instruments to improve their sound during the Romantic period?StringsWood choicePiano keyboardsValves at what point in the middle ages did we see a period of great cultural growth A zebra runs 20 meters in 4 seconds. At this rate, how many meters does the zebra run in 60 seconds? A. 300 B. 240 C. 120 D. 80 plz help me i beg of you!??? For one of my math assignments I have to find out which solution is, One solutionInfinite solutionand No solutionwhat i've got for it isy=x+6 and 3x-3y=-18 (Infantaly amount of solutions)y=-4x+11 and -6+y=11 (One solution)y=-2x+5 and 2x+y=-7(no solution)Is this correct? Help? Show work!Triangle PQR Triangle XYZPQ = 3a + 4 and XY = 5a 12. Find a and PQ. if you're riding your bike at 15 miles per hour then how long will it take to travel 15 miles? which one of the following groups are decomposers a. algae b. protist c. fungi d. green plants e. photosynthetic bacteria? would you describe the rise of parliament england as an evolution or a revolution Which of the following best identifies the topic of this excerpt? A. Identity. B. Bullying. C. Advocating. why does the term "propaganda" carry a negative connotation 9. Does a blackbody radiator emit light waves? Explain. Need need need help!! Which table shows a constant rate of change 3.25 Which of the following best describes the proper use of a "Works Cited" page? A Works Cited page is not needed if you paraphrase your research. A Works Cited page is not needed if you use signal phrases. A Works Cited page is optional when writing a researched text. A Works Cited page is required when writing a researched text.