Quadrilateral A'B'C'D'is the image of quadrilateral ABCD under a rotation of about point Q. Determine the angle of rotation

a. -90
b. -60
c. 60
d. 90​

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

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!

On ryan's last social studies test there were two types of questions true/false worth 3 points each and multiple choice questions worth 4 points each