7x + 2y = 7

-14x + 2y = - 11

Solve by substitution

7. A student can type 174 words in 3 min and 348 words in 6 mon. how many words can the student type in 8 min? A) 378 B) 464 C) 484 D) 524

Evaluate y x 6 for y = 2/3

What's the distance between (-5,-6) and (4,2)

Four puzzles that were manufactured contained a total of 420 pieces. The next 6 puzzles contained a total of 630 pieces.

Farmer Brown counted 12 heads and 38 legs. How many chickens and cows does he have

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.