How much more money does it cost for 10 children to attend than for 8 children

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.

The triangles are similar. what is the value of x? enter your answer in the box.