Ervin bowled 7 games last weekend. his scores are: 155, 165, 138, 172, 127, 193, 142. what is the range of ervin's scores?

Write two subtraction equations that are equivalent to 5 + 12 = 17.

George has seven boxes of five pencils. giulio three boxes of eight pencils. one of the boys arranges all his pencils equally into two groups. was this george or giulio how many are in each group explain

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?