For what value of the variable: is the value of 9-y twice as much as the value of y?

Which is most likely to be the first step in solving a system of linear equations by substitution

A population of 1,750 cheetahs decreases by 10% per year. How many cheetahs will there be in the population after 11 years? Round your answer to the nearest whole number.

e is a math tutor. She charges each student $210 for the first 7 hours of tutoring and $20 for each additional hour.

Simplify. 78 + (-23) 5678 + (-23) 56 Enter your answer in the box in simplest fractional form.

Peggy Sue decided to enter her famous five alarm chili at her local chili cooking contest normally she needs five tomatoes to make enough chili for her family of seven how many tomatoes what should she expect to use to make her famous recipe for 100

Are a rational expression and its simplified forms equivalent? Provide mathematical examples to support your opinions.

Select all the correct answers. Aisle 2 of a furniture store stocks 4-legged chairs, 4-legged tables, and 3-legged stools. If there are t tables, c chairs, and s stools, which expressions show the total number of furniture legs in aisle 2?

Assume a round of golf requires four hours of leisure time, and attending a concert requires two hours. If the price of a round of golf is $40 and the price of a concert is $80, ceteris paribus, Joe will play

Hans is planting a garden with snapdragons and daisies. The table shows some possible combinations of the two plants. If Hans plants 29 daisies, how many snapdragons will he plant?

Find the greatest common factor (GCF) for each number set 1. 4,10 A. 1 B. 2 C5 2. 25,50 A. 1 B. 5 C. 25 3. 56.63 A. 1 B. 6 C. 7 4. 12,24,48 A. 2 B. 12 C. 24 5. 96,120 A. 2 B. 12 C. 24