What is the y-intercept of the line shown?

−1
0
0.5
1

What is the simplified form of 7 √x • 7 √x • 7 √x • 7 √x?

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

Askateboard ramp is in the shape of a right triangle what is the height of the ramp