Answer:
19
Step-by-step explanation:
2x+7=45
2x=45-7
2x=38
2x/2=38/2
X=19
Answer:
9
Step-by-step explanation:
5*23
10,000/100 = 100 x 4.50 = 450
therefore you would earn %450 in interest after one year
You are looking for something "if A, then B" equals "if B, then A".
The only one that satisfy the above is B.