When we don't know the number in an algebraic expression, that is called

substitution

an operation

a variable

When you find 420% of 85, what are you looking for? Are you looking for the percent, the part, the whole or a ratio

At a sale this week, a sofa is being sold for $231. this is a 34% discount from the original price. what is the original price?

A rectangular swimming pool is 47 feet and 24 feet wide. What is the area of the bottom of the swimming pool?

Lisa is going on a long distance bike ride with her friends. They will ride at a rate of 10 miles every hour. Write an equation that relates the distance, d that Lisa travels to the number of hours, h she has ridden.

Round to the place value of the underlined digit. 64,999. The underlined digit is 6

while playing basketball, jada's heart rate goes up to 160 beats per minute. whe jogging her heart beats 25 times in 10 seconds.

What does 12 times a number mean as an expression?

Emma seys that the preduct of a 3-digit number and a 1-digit number will be either a 3 digit number or a 4 digit number. Does Emma's statement make sense

Work out the value of these two questions: 1) 3^2 + 2^3 2) 2^4 - 3^2

What is 5 1/4 divided 2 2/7