Find x please!!
a.10
b.32
c.116
d.16

Which math sentence can be used to determine if the triangle is a right triangle?

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

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!