Which step should Richard perform last. WILL MARK BRAINLIEST PLZ HELP. ASAP.

81+90

Step-by-step explanation:

9^2 + 2[(5+2)^2 -4]

PEMDAS says parentheses first , working inside out

9^2 + 2[(7)^2 -4]

PEMDAS says parentheses first, doe the exponents inside the parentheses

9^2 + 2[49 -4]

Then the subtraction inside the parentheses

9^2 + 2[45]

Then Exponents

81 +2[45]

Then Multiplication

81+90

Finally add

A

Step-by-step explanation:

9² + 2[(5+2)² - 4]

81 + 2[(7)² - 4]

81 + 2[49 - 4]

81 + 2(45)

81 + 90

171

124

you need to show us the graph.

step-by-step explanation:

x -

median = 1.25

range = 12-14.5

interquartile = q12-q14.5

y -

median = 1

range = 15-17

interquartile = q15-q17