The total age of diana, carmen , and andrew is 45. diana is 21,and andrew is twice as old as carmen. how old is andrew

Asequence is defined recursively by the formula  f(n  +  1)  =  f(n)  +  3 . the first term of the sequence is  –4. what is the next term in the sequence? –7–117

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?