Answer:
Step-by-step explanation:
Letters are variables and those variable can store a number
Ex: x=5 y=2
evaluate : 3x+2y
we know that x is 5, so we know that 3x would be 15
we know that y is 2, so we know that 2x would be 4
then it says to add 3x and 2y, we would add 15 and 4 to get 19
(This is a very simple example, when you get older, the expression would be much more confusing.
Answer:
1.952380
Step-by-step explanation:
we know that
1 ft is equal to 12 in
step 1
dimensions of plywood required
(12+3+3) x (18+3+3)------> 18 in x 24 in
step 2
convert inches to feet
18 in-------> 18/12=1.5 ft
24 in------> 24/12=2 ft
step 3
area of plywood required
A=b*h------> 1.5*2------> A=3 ft²
the answer is
3 ft²
60% of 14.50 = 8.7
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Hope I Helped!!</span></span></span></span></span></span>
