What type of number is the square root of 13

Colin was thinking of a number. Colin adds 18 to it, then doubles it and gets an answer of 65.5. What was the original number?

Dots sells a total of 265 T-shirts ($2) and shorts ($3). In April, total sales were $637. How many T-shirts and shorts did Dots sell? Hint: Let S = Shorts.

the volume of a cylinder is 144 Pi in squared3 and the height of a cylinder is 1 in what is the radius of the cylinder

A fruit sells 60 pieces of fruit that are either apples or oranges. The ratio of apples to oranges is 3:2. Write a system of linear equations to find how many apples and oranges that the vendor sold?

Replace the? with one of the following symbols (, =, or ≠) for 4 + 3 + 7? 7 + 0 + 7 A. > B. ≠ C. = D.

Building a is 160 feet shorter than building b. the total height of the two buildings is 1530 feet. find the height of each building.

Twice the quantity y minus 8

Is the triangle with the vertices A (7,3), B (0,7), and C (-3,-2) a right triangle?

Sacha has a box of antique letters. She wants to gave an equal number of letters to each of her 5 friends. how many antique letters will each friend receive?

What is the slope of (3,8) and (2,5)