Answer:
x = 19.5
Step-by-step explanation:
-2x + 7 = -32 (subtract 7 on both sides)
-7 -7
-2x = -39 (Divide by -2)
x = 19.5
Answer:
121.
Step-by-step explanation:
So, the 11th square number is 121.
Answer:
Step-by-step explanation:

Answer:
Problem 1 = 9
Problem 2 = 260
Step-by-step explanation:
Answer:
270 degrees counter-clockwise
Step-by-step explanation:
90 degree clockwise or 270 degree counter-clockwise
(x,y)----->'(y,-x)