To which rational number subset(s) does the following number belong? -8

I. Rational Numbers
II. Natural Numbers
III. Whole Numbers
IV. Integers

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

Y=x+2 4x+3y= -36 system of equation

The cost varies directly with the number of tickets purchased. it costs $145 for 10 people to attend a concert. a. what is the constant of proportionality (k)? b. write the direct variation equation. c. home much does it cost for 8 people? d. graph this situation. be sure to label each axis and give the graph a title.