Two times a number increased by four

Write 3/10 and 2/5 with a common denominator

What must you do if there's a decimal in the divisor

Share $100 between two persons A and B, giving a $10 more than B

What is the ratio for 64 and 16

Chris just found a new job that pays $600 a week. this is 4 times what his old job paid. what was chris's weekly salary at his old job

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.