7/8x-5/8x fractional coefficients

Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals.

Solve for x: 3 over 3 x plus 1 over quantity x plus 4 equals 10 over 7x.

Andrew is going to drive from his house to City A without stopping. Andrew's house is 160 miles from City A and after driving for 3 hours, he will be 40 miles away from City A.

What's heavier 0.01567 kg or 0.011804

Which expressions are equivalent to the one below? Check all that apply. 5^4*5^x A. 5^4-x B. 625*5^x C. 25^4x D. 5^4x E. 5^4+x F. (5*x) ^4

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.