How to formulate 2 linear equations from word problems?

The difference of 17 and five times a number.

A pair of jeans cost x dollars and is subject to a 7% sales tax. Using only one step which of the following expressions could be used to font the cost of the pair of jeans in dollars?

Bill bought a new cellular phone. His monthly bill will be $32.99 each month which includes 100 minutes of use. Additional minutes will cost $0.19 per minute.

An artist mixes yellow and blue paint to make the perfect shade of green. She uses 2 ounces of blue paint for every 7 ounces of yellow. The artist realizes she had 49 ounces left. How many ounces of blue will she need to add?

If you choose an answer to this question at random, what is the chance you will be correct? (A) 25% (B) 50% (C) 60% (D) 25%

The ratio of the number of boys to the number of girls at school is 4:5. what fraction of the students are boys?

Graph g (x) = 50 - 6+2.

On a floor plan, a room measures 2 inches by 5 inches. if the scale is 1 inch = 4 feet, what is the actual size of the room?

1. What is 25% of 40?

Find the value of the underlined digit 584.2