Answer:
3
Step-by-step explanation:
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
3^4 +9^2÷3^3-9^2
81+81÷27-81
81+3-81
3
Step-by-step explanation:
y= 5
x=3
.................
To fond the area of a trapezoid, add the top and bottom together, divide that by 2, than multiply by the height.
Area = (8+12)/2 = 20/2 = 10
10 x 9 = 90 square centimeters.
1.679 kg * (40 min)/(kg) + 20 min = 67.16 min + 20 min = 87.16 min