Find the variable 3x+5=20

A larger number is five more than twice the smaller number their sum is 80 find the number how do I set this up?

Ely has a bag of 42 strawberries. She eats 16 strawberries. How many cherries does she have left. The next day she goes to the store and buys 28 more cherries. How many strawberries does she have now?

Simplify 9 to the 2nd over 9 to the 7th. a 95 b 1 over 9 to the 9th c 1 over 9 to the negative 5th d 1 over 9 to the 5th

Curtis has $600 and is spending $30 per week, Rachel has $200 and is saving $50 per week. In how many weeks will Curtis and Rachel have the same amount of money?

A certain population is growing according to the formula N = 1330 * 1.09t. What is the tripling time for this population? Round your answer to one decimal place.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.