What is the rule for a clockwise rotation of 270 degrees? (x , y) -> ( -y, -x)

(x , y) -> ( -x, -y)

(x , y) -> ( y, -x)

(x , y) -> ( -y, x)

the answer is c. 23/3

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94