I'm the triangle m< 1 =32 and m< 4 =71 what is m< 2

Tina practice piano for 15 hours last month and 45 hours this month use multiplication to write a statement comparing me i was tina practice during the two months use addition to write a statement comparing the hours tina practice during the two months

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

What is the value of x in the equation 2(x-4) = 4(2x + 1)?