Do at least one! a) find two numbers, if … their sum is 3 and their difference is 21 b) find 2 numbers, if their sum is −7 and their difference is 14

Me with this one question, and i'll upvote the brainliest answer

Acolony contains 1500 bacteria. the population increases at a rate of 115% each hour. if x represents the number of hours elapsed, which function represents the scenario? f(x) = 1500(1.15)" f(x) = 1500(115) f(x) = 1500(2.15) f(x) = 1500(215)

Hannah paid $3.20 for 16 ounces of potato chips. hank paid $3.23 for 17 ounces of potato chips. who paid less per ounces?