The principal of mountain middle school has a big glass jar of marbles. The empty jar weighs 40.5 ounces, and each of the 1,000 marbles weighs 1.25 ounces. Find the total weight in ounces of the marbles.

What is (4x+8) + (7x+3) ?

Sin (x-20) = 1/root2 This question is confusing me.

Question 13 If the nth term of a sequence is 6n + 4 what is the 9th term?

1. Describe the difference between these two equations. Use the words exponent and independent variable in your description. y = 3x + 2x + 1 y = 3x2 + 2x + 1

What is 1,400 divided by 10?

Iᔕ 7/15 ᒪEᔕᔕ Tᕼᗩᑎ 1/2

A rectangle is 18 inches long and 12 inches wide. What is the perimeter of this rectangle? 30 in. 36 in. 50 in. 60 in.

Angie is using similar triangles to find the heights of the tree. A stick that is 5 feet tall casts a shadow that is 4 ft long. The tree casts a shadow that is 22 feet ft long. How tall is the tree?

20,000 concert tickets were sold to the Rihanna concert. Stage level seats cost $105 and higher level seats cost $75. If the total money collected from selling tickets was $1.74 million, how many tickets of each type were sold?

According to the 2000 U. S cenus, 7 our of every 25 homes are heated by electricity. At this rate, predict how many homes in a community of 12,000 would be heated by elercticty