How do you graph this equations
y=2x+2
y=-2x-6

Combine like terms to make a simpler expression 3z+z

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)

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