Iam thinking of a number. it is increased by 7. the sun is 21. what is my number?

Find the indicated value, where g(t) = t^2-t and f(x)= 1+x a. -2 b. 0 c. 2 d. 8

What are the soultion(s) to the quadratic equation 40- x^2=0

What is the distance between a and b? round your answer to the nearest tenth. a coordinate plane is shown. point a is located at negative 1, 5, and point b is located at 4, 1. a line segment connects the two points.