7 less than a number

A 7-x

B 7x

C 7 divided x

D x-7

What's the answer to 11.5-3y=48.5

For a single roll of two dice, are rolling a sum of 6 and rolling doubles mutually exclusive events?

Silka swims at an average speed of 0.35 miles per hour. About what distance will silka swim jn 2.8 hours?

What is the answer; if a=b 30 and c=b 60?

Which equation calculates the number of 13-foot pieces that can be cut from a piece of wood that is 7 feet long?

Find the unit rate of 42 teaspoons for 6 cups

Ms. Corley wants to take her class on a trip to either the nature center or the zoo. The nature center charges $4 per student plus $95 for a 1-hour naturalist program. The zoo charges $9 per student plus $75 for a 1-hour guided tour.

It is a four digit whole number

If sam walks 650 meters in x minutes then write an algebraic expression which represents the number of minutes it will take sam to walk 1500 meters at the same average rate.

Chloe makes $450 per month. She already has $50 saved and is planning to save 10% of what she earns from now on. Write an equation to calculate her total amount saved as a function of the number of months she works.