How to find the perimeter and area

Armon added 1/10 and 8/100. Which is the correct sum?

Show or explain how to write 8,523 in expanded form using 15 hundreds

What is the volume of a cube whose edges each have a measure of 1.6 cm? 2.56 cm³ 4.096 cm³ 8.192 cm³ 9.6 cm³

Rachel hikes at a steady rate from a ranger station to a campground that is 20 mi away. After 2 h, she is 13 mi from the campground. After 4 h, she is 6 mi from the campground.

Which value of x satisfies the equation sin40=cosx

In ΔABC, if AB = 10 and BC = 6, AC can NOT be equal to

You bought 0.875 kilogram of mixed nuts. What was the total cost, in dollars, of the mixed nuts that you bought.

13 is 26% of what number

A rectangular area of 36 f t2 is to be fenced off. Three sides will use fencing costing $1 per foot and the remaining side will use fencing costing $3 per foot. Find the dimensions of the rectangle of least cost.

How do you raise $7.50 by 20%