If 10 percent of 50 percent of a number is 30 less than one-quarter of the number, what is the number?

120
160
150
100
130

i'm bad with problems like this, ?

1. a right triangle is graphed on a coordinate plane. find the length of the hypotenuse. round your answer to the nearest tenth. 2. use the angle relationship in the figure below to solve for the value of x. assume that lines a and b are parallel and line c is a transversal.

What is the reflection image of (5,-3) across the line y = -x?

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane