15 4 7 − 11 2 5 4 + 3 7

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year