Use the order of operations to evaluate: −7.6 − 2[9 + (−6.8)] First, simplify the parentheses: [9 + (−6.8)] = 2.2. Now the expression is: −7.6 − 2(2.2).

Since there are no exponents in this problem, the next step is
.
Simplify the previous step and you get
.
The final answer is
.

StartFraction 18 over negative 3 EndFraction =

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

roots are from trees

step-by-step explanation:

step-by-step explanation: