An object with a mass of 150 kg accelerates 10.0 m/s2 when an unknown force is applied to it. What is the amount of the force?

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16