7th grade math help me please :((

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

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