Answer:
A=-3 And B=2
Step-by-step explanation:
25,000
i think because 10 times 100 gets 1000 so now you have to do 250 times 100 to get 25,000
14
12:6=2
12+2=14
so her brother it's 14 years old
answer is 12
4x+8x+12x+16x=5+10+30+40
4x+8x+12x+16x= 85
40x=85
x= 85/40
x=2.125