One number is 5 more than twice another and their sum is 23.

What system of equation represents the word problem?

Simplify 18ab/15bc multiply by 20cd/24de

If f (x) = 2x+1 and g (x) = c^2-7, find (f•g) (x)

A building with a height of 40 ft casts a shadow that is 16ft long. A person standing next to the building casts a shadow that is 2ft long. How tall is the person?

Given: x - 7 > - 2. choose the solution set

The owner of a small store buys coats for $55.00 each. Answer parts a and b. a. He sells the coats for $77.00 each. What percent of the purchase price is the sale price? The sale price is 140 % of the purchase price. b.

Whar is the value of x (x+1) + (2x-15)

Expand then simplify 2 (x-5) + 2x

A set of speakers costs $22 and songs cost $1.25 each. The sales tax rate is 7.5%. The expression 0.075 (22 + 1.25s) can be used to determine the amount of sales tax due on the entire purchase.

The lengths of nails produced in a factory are normally distributed with a mean of 5.13 centimeters and a standard deviation of 0.04 centimeters. find the two lengths that separate the top 8% and the bottom 8%.

A village lost 15% of its cows in a flood and 10% of the remainder died of diseases. If the number left now is 7650, what was the original number of cows before the flood