60h minus 8h in algebraic expression

What is (3x+2 ) + (-4x+4)

Solve for x: 2 (x-4) = 5x - 3x - 8

Haji rows his canoe 10 mph in still water. He noticed one day that he could row 4 miles upstream in the same amount of time he could row 6 miles downstream. What was the approximate speed of the current that day?

The number of students at a community college increased by 12% from the last year to this year. The enrollment last year was 15,000 what in the amount of the increase in enrollment? what is the number of students enrolled this year?

The initial number of transactions that took place in the first hour of day is 10 and the number of transactions doubles every hour after that

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.