Answer:
B) x + s = 90, x - s = 20
Step-by-step explanation:
x + s = 90 represents that both Xavier and Sara's money combined is $90.
x - s = 20 represents that Xavier has 20 more dollars than Sara.
Factors of 4 : 1,2,4
factors of 10 : 1,2,5,10
Answer:
B.
Step-by-step explanation: