Can someone actually answer this question quick

a+b=c> 4
b=7
a= 2
what is c?

Which value of c would make he following expression completely factored? 8x+cy

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

The box plot shows the number of raisins found in sample boxes from brand c and from brand d. each box weighs the same. what could you infer by comparing the range of the data for each brand? a) a box of raisins from either brand has about 28 raisins. b) the number of raisins in boxes from brand c varies more than boxes from brand d. c) the number of raisins in boxes from brand d varies more than boxes from brand c. d) the number of raisins in boxes from either brand varies about the same.