What will the rate of acceleration be if a 10N force is applied to an object with a mass of 10kg?

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Which of the following expressions is equal to 2x^2+8

The surface area of the triangular prism is .