5x - 2 equivalent to to 2x−2+3x
answer is B. 2x−2+3x
Ok... so this question can be solved by using simultaneous equations.
Use the general from of a parabola

you know the value of c, the y-intercept... y = -4
which means the equation is

now use the other 2 points to get 2 equations in 2 unknowns
(-2, -20) just substitute

this becomes

now the other equation using (4, -20)
The simplified form is
Answer:
The answer to 75 - ( 8 + 45 ÷ 3 ) × 2= 29
height of mt.= 4000meters
hope it helps...!!!