If a, b and c are positive integers such that a + b = 9 and ac - 2 bc = 0, what is the value of a?

The volume of a sphere is given by V = (4/3) πr3, where r is the radius. what is the formula in terms of r

Form a polynomial whose real zeros and degree are given. zeros: negative 2-2 , negative 1-1 ,44 , 55 ; degree: 4 type a polynomial with integer coefficients and a leading coefficient of 1.

Write 30:17 in different ways?

Solve the equation using square roots. x^2 - 9 = 0

Tim tradesman pays 2000 annually for 125000 worth of life insurance. what is the cash value of the pilicy after ten years?

Twice the sum of 10 and a number decreased by four is 32. Write an equation and solve

8 hundreds + 2 hundreds unit form

Anna bought three shirts for $23, $20, and $16 and a sweater for $28. The sales-tax rate is 4 percent. How much did she pay all together?

How does the enlargement of shapes work?

What are all the equivalent ratios for the situation? 8 tablespoons of Peanut butter to 4 table spoons of jelly?