Answer:
90
Step-by-step explanation:
base in my previous learning.. hope it helps
1.25 x 250=$312.50 as Alex’s new salary.
1.25 x 180=$225 as Ben’s new salary.
Now subtract Ben’s salary from Alex’s salary
312.50 - 225=$87.50
Alex earned $87.50 more in one month than Ben
The answer to this question is A
The answers are a=4 and b=-2