The probability is 7/10 because there are only 7 boys or it could be 70%
Answer:
The shaded area is 
Step-by-step explanation:
we know that
The shaded area is equal to the area of the large square minus the area of the two smaller squares
so

---> expression that represent the shaded area
Calculate the shaded area
Remember that

substitute

Answer:
x = -12
Step-by-step explanation:
-2.5(x-4)=-3x+4
Distribute
-2.5x +10 = -3x +4
Add 3x to each side
-2.5x+10 +3x = -3x+4+3x
.5x +10 = 4
Subtract 10 from each side
.5x+10-10=4-10
.5x = -6
Divide by .5
.5x/.5 = -6/.5
x = -12
Answer:43
17.01+5.988=22.998
22.998+20.002=43
First line up decimals then add regularly