What is 15 decreased by twice a number in an algebraic expression?

The chart shows the high temperature each day in Fairbanks, Alaska during the month of February 2009. What was the median high temperature in Fairbanks for the first week of the month?

A painter mixes 6 parts red paint and 8 parts yellow to make dark orange paint. Which equation can the painter use to calculate the amount of red paint, R, that is needed to mix with a given amount with yellow paint, Y? A. R = 6/8 = Y, B.

Anna bought 8 tetras and 2 rainbow fish for her aquarium. The rainbow fish cost $6 more than the tetras. She paid a total of $37. Which of the following are true? Select all that apply. A.

10 x - 7 y = 2 6 x - 7 y = 18 elimination

How do you solve systems of linear equations by graphing?

Convert 3/4 into a quotient and percentage

Simplify the expression 3 (-3y+2x) combine like terms a+3a-b+4b+c

If a figure has 5 sides 5 vertices and no equal sides what is it? it is a polygon BTW

If I rent a boat for $25 per hour and a charge additionally $12 for fuel is the number of hours I rent the boat proportional to the total cost

90,88,88,87,84,95,90,80,98, and 100 (A) find the mean of these numbers (B) find the median of these numbers