Sarah bought 4 pairs of sunglasses for $4.38 each. If she paid with a $20 bill, how much money would she have left over?

Pelle's sister is three years older than pelle the father is 5 times as old as pelle the mother was 28 when the sister was born altogether they are 98 years old how old is pelle?

Given the function f(x) = 3x + 1, evaluate f(a + 1). a. 3a + 1 b. a + 2 c. 3a + 4

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?