Kevin collects coins from all over the world. He wants to estimate how many coins he has in his collection. He has 24 U. S. coins, 8 Mexican coins, 47 Japanese coins, and 14 French coins. If Kevin rounds each country's coin count to the tens place,
what would his estimated total coin count be?

Jimmy can run 3.5 miles in 20 minutes. how far can ne run in one hour and ten minutes?

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?

Write as a product of two polynomials. 2(3–b)+5(b–3)^2