15/8 19/12 5/2 is the answer for this problem
Answer:
C
Step-by-step explanation:

Use the Power of a Product Property, where:

Therefore:

X=-3 because 5x-3=-15, -15-7 =-22
Answer: 40 students
Step-by-step explanation:
50x4 = 200 students
10x4 = 40 students who chose red.
You can check your work by dividing 4 by 200 and 40 by 4.
Answer:
y = + 4
Step-by-step explanation:
y² - x = 7 ← substitute x = 9 into the equation
y² - 9 = 7 ( add 9 to both sides )
y² = 16 ( take square root of both sides )
y = ±
= ± 4
the positive value of y when x = 9 is + 4