William and amy are stuffing envelopes for a charity. today william stuffed a total of 70 envelopes. this was 10 more than twice the number of envelopes that amy stuffed. how many envelopes did amy stuff?

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

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

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?