Answer:
1) 21
2) 28
3) 13
Step-by-step explanation:
According to the word problem, a=7 and b=4.
Now, we just plug in the numbers.
14 + 7 = 21
7 ⋅ 4 = 28
5 ⋅ 4 - 7 = 13
ANYTIME YOU SEE TWO VARIABLES (LETTERS) TOGETHER, THAT MEANS MULTIPLY THEM.
AN EXAMPLE OF THIS IS NUMBER 2.
