Thomas calculates 9*7 by thinking avout it as 70-7=63. Explain thomas' strategy.

How can something me nonlinear

0.25 (4f-3) = 0.05 (10f-9)

If x=6 find the value of 3x

A rectangular cake has a length of 13 1/2 inches and a width of 9 inches. How many whole, square pieces of cake with side lengths of 2 1/4 inches can be cut from the cake?

In one day a clothing store sells 9 shirts costing 25.75 each. How much money does the store earn from the shirts?

Is 9/12. Bigger than 3/4?

What is 7 2/5 - 5 2/3

Myron has about 179 postcards he says he has about 200 cards did he round to the nearest 10 or nearest hundred explain

A food processor packages orange juice in small jars. The weights of the filled jars are approximately normally distributed with a mean of 10.5 ounces and a standard deviation of 0.3 ounce.

If f (x) = 7x-5, find f-| (16) ?