There are 52 questions on allison's english test. the multiple choice questions are worth 2 points each, and the short answer questions are worth 5 points each. the entire test is worth 155 points.

let x = multiple choice questions, and
y = short answer questions

how many short answer questions are on the test?

Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.

Which number produces an irrational number multiplied by 1/3