Write the quadratic equation whose roots are -1 and 3 and whose leading coefficient is 1

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

Given that abcd is a rhombus, what is the value of x?

Interpret the following expression (5y^2-7)^3/(2y)^2