What does a variable next to a number mean?

Write a equation of a line that has the same slope as y=3x-1

During a sale, $2 bars of soap were sold of a rate of 3 for $5. How much is saved on 9 bars?

Greg's mother gave him $10.00 for cutting the grass and his father gave him $15.00 for cleaning the garage. How much money would he have left over from his work if he spent $16.35 at the movies? A) $10.65 B) $7.55 C) $8.65 D) $9.45

What is the differinate of plant and animal cell?

What is the answer for 8-4 (m+5) = 3 (m-9)

Li started a pool cleaning business. She purchased cleaning supplies and charged the same amount for each pool cleaned. The expression - 243+24x-243+24x represents the profit Tali has earned from cleaning pools.

The decimal form of 43% is

The sum of two numbers is 12. The first number, x, is twice the second number, y. Which system of equations could be used to find the two numbers?

Reasoning write 1,360/220 as a repeating decimal

Today gasoline are $3.44 per gallon. One year ago gasoline prices were $3.75 per gallon determine the percent change in the gasoline price from a year ago to today