Pls help I’m having trouble

The isosceles triangle has two sides of equal length, a, that sre longer than the length of the base ,b. the equation 2a+b=15.7 can be used to find the sides length. if one of the longer sides is 6.3 centimeters what is the length of the base

Select a graph that have an equation with a < 0

The function models the number of accidents per 50 million miles driven as a function