10 Mark buys a wooden board that is 7 feet long. The cost of the board is $0.50 per foot, including tax. What is 2 the total cost, in dollars, of Mark's board?

What kinds of numbers make up the set of numbers called the real numbers? give examples when you explain a number type. there are a limited set of types of numbers, but an unlimited number of examples of these numbers.

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r