If a stack of $10 bills is worth $90 billion what is the height of the stack in kilometers? Assume each bill is 0.2 milimeters thick would the answer be 18,000 km?

Hector is five years less than double Mary's age. Mary is 12 years old 1 7 19 29 I believe it's 7 or probably not

Solve x for 3 х - 1 = - 13

What times 4will get to 80

Exspress each fraction in simplest form 5% = 1/10 = 12% = 1/8 = 15% = 1/5 = 25 = 3/4 = 37% = 2/5 = 50% = 3/5 = 62% = 7/8 = 83%=

Solve for x x/25 > 5

If the length of a cube is 2x2y units. What is the volume of the cube?

Two neighbors purchased a square lot that is 85 ft on each side. They intend to split the cost of a fence that connects opposite corners of the lot. The cost to build the fence is $11.45 per linear foot.

If a road has a grade of 30°, this means that it's angle of elevation is 30°. If you travel 1.5 miles on this road, how much elevation have you gained in feet (5280 ft = 1 mile) ?

Select from the drop-down menu to correctly complete the statement about the given figures. Triangles PQR and MNO are (here it has a drop down menu I'll include those options below) Similar or not similar? Two right triangles, PQR and MNO.

Find the product of (x + 3) (x - 3). a. x2 - 6x + 9 b. x2 + 6x + 9 c. x2 + 9 d. x2 - 9