If 10 pens cost £4.00 then find the cost of 7 pens

Why is the opposite of a number also called the additive inverse

Smart enough to answer this question? Gracie, Mary, and Nancy each have a small collection of seashells. Gracie has 5 more than 1 1/4 times the number of shells Mary has. Nancy has 1 more than 1 1/2 times the number of shells Mary has.

What is the solution of (4 x minus 16) Superscript one-half Baseline = 36?

How do you Solve 5 (x+2) - 3=3x-7

For every 3 kiwis there are 4

If a man is wallpapering a room 9ft by 9ft by 9ft high. How many square feet of paper will he need if there are 93ft^2 of openings in the room? How do i solve for the answer

Factor 35x + 28y im stuck on this and cannot get the answer

Converting unit rates 25 hours - blank seconds

11. Identify the coefficient of 2xy3

Choose the correct product of (8x? 4) (8x + 4). 64x2? 16 64x2 + 16 64x2? 64x + 16 64x2 + 64x + 16