What's the substitution for 3x+y=-8 and - 2x-y=6

Which expression stands for "32 more than a number d" A : 32 x d B:32 - d C: 32 + d D:32 / d

Terry takes 7/8 hour to do one homework assignment. His brother takes 1/3 of the time he takes. How long will his brother take to complete 6 similar assignments

An athlete eats 0.3 kg of protein per week while training. How much protein will she eat during 9 weeks of training?

How do you solve subtraction equations using models?

Six times a number increased by three is equal to three Times the same number minus six. What is the value of the number?

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.