A ramp is needed to allow vehicles to climb a 2 foot wall. The angle of elevation in order for the vehicles to safely go up must be 30 degrees or less, and the longest ramp available is 5 feet long. Can this ramp be used safely?

yes!! the ramp is less than 30 degrees

it's both, now can you answer my most recent question?

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.