Philip walked a total of 8 kilometers by making 2 trips to school. after 3 trips to school, how many kilometers will philip have walked in total? solve using unit rates.

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Find the difference (8ab+a+2) - (3ab+6)

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?