How to make a word problem with percentage

I need to learn how to write algebraic equations. For example: Three less than sixty divided by a number is twenty-three

One gallon of paint covers 14 square feet of wall space. Andrew is painting two walls. One is 10 feet long and 9 feet tall. The other is 16 feet long and 18 feet tall. How many gallons of paint will he need

50 tens x 4 hundreds = 40 tens x 5 hundreds True or False?

3x (5+x) - 2x (3x - 7) Algebra questions

Last year there were 400 students in 7th grade. The number this year increased by 15%. How many stundents are in 7th grade this year?

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.