If 4m-3/7=3, what is the value of 7m-5

What is the simplified expression for 6(2(y+x))

How many solutions does the nonlinear system of equations graphed bellow have?

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25