What is 0.62x10 yo the power of 3

Find the sum of the following series. round to the nearest hundredth if necessary.

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

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