A boy is 17 tears old and his sister is twice as old. when the boy turns 23 yrs old what will be the age of his sister?

Suppose 11 people arrive at a bank at the same time. In how many ways can they line up to wait for the next available teller? a) 3,628,800 b) 362,880 c) 39,916,800 d) 121 e) 11

What are the first four terms in the multiplication, or geometric, pattern in which the first term is 7 and then each term is multiplied by 4? 7, 28, 112, 448 7, 28, 56, 112 7, 11, 15, 19 28, 112, 448, 1792

A candlestick contains 5 pounds of silver. Suppose silver is worth $15 per ounce. How much would the silver in the candlestick be worth? A) $75 B) $240 C) $600 D) $1.200

If the old scale factor is 1 inch to 3.3 feet the new scale factor is 1 inch to 1.1 feet what is the change in the scale factor from old to new scale

A cell-phone company has noticed that the probability of a customer experiencing a dropped call decreases as the customer approaches a cell-site base station.

Suppose a star is approximately 38,000,000,000,000 kilometers from Earth. How do you write this number in scientific notation?

Find the simplified product where x is greater than or equal to 0 square root 5 (square root 8x^2-2 square root x)

Solve for x, where is x is a real number. |x-3|<7

17.2 + 6.08+0+0+0+0+0+0+0+0=

Emilio cut a sandwich into 8 equal peices and ate 1 peice. He has 7/8 of the sandwich left. Emilio put each remaining peice on a snack plate. How many snack plates did he use? What part of the sandwich did he put on each plate?