-9^2-(-6)^2+3-20 i don’t understand the question

28

-9^2 - (-6)^2 + 3 - 20

so follow order of operations

P = parentheses

E = exponents

D = divide

M = multiply

A = add

S = subtract

since there are no parentheses, do exponents

-9^2 = 81

-6^2 = 36

so now its

81 - 36 + 3 - 20

now follow order of operations

81 - 36 = 45

45 + 3 - 20

3 - 20 = -17

45 + -17 = 28

so your answer is 28  

step-by-step explanation:

there are 36 inches in a yard

25 : 36 = 0.69 yards (you can round to 0.70)

answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .