If emma decides to buy a new laptop for school which of the following is most likely to be her opportunity cost buying new software for the laptop going somewhere on spring break paying for her education filling her car with gas

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

Which of the following tables represents exponential functions?

Asap! i'm not good math and i'm lost.