Megan sent 12 postcards last week. This week she sent 4 postcards. How many more postcards didn't she sent last week?

10.2 = 20 is rewritten as 2.10 = 20. Was this expression rewritten using the commutative law or the associative law?

Sam makes 123 party flavors. Lili makes 87 more party favors than Sam. How many party favors does Lili make?

What is 709032 minus 249136

Find the product of 5 (-2/3)

Solve the equation. 8 - 2x = - 8x + 14

Darla drives at a constant speed of 45 miles per hour. a. If she drives for y miles and it takes her x hours, write the two-variable equation to represent the number of miles Darla can drive in x hours b.

Substitute x=5 and y = 7 for the algebraic expression 24x-3) + 6 (3y-5) and evaluate the expression

In a region there is a. 95 probability chance that a randomly-selected person of the population has brown eyes assume 12 people are randomly selected

4b - 5 = - t, solve for b

morgans gross income was 1200. How much Federal Income Tax will she pay if Federal Income Tax 12%. Round to the nearest hundredth