Answer:

Step-by-step explanation:
<em><u>The formula for finding the area of a triangle is:</u></em>
<em><u /></em>
<em><u>The "b," is the base (7), and the "h," is the height (8):</u></em>


28
No,
one of the 3 sides need to be 90
Answer:
y= -11
Step-by-step explanation:
<span>Simplifying
-3.7 + w = 9.24
Solving
-3.7 + w = 9.24
Solving for variable 'w'.
Move all terms containing w to the left, all other terms to the right.
Add '3.7' to each side of the equation.
-3.7 + 3.7 + w = 9.24 + 3.7
Combine like terms: -3.7 + 3.7 = 0.0
0.0 + w = 9.24 + 3.7
w = 9.24 + 3.7
Combine like terms: 9.24 + 3.7 = 12.94
w = 12.94
Simplifying
w = 12.94</span>
Place value. when multiplying by 10 you are moving a decimal, having everything lined up like place value would save you a lot of time.