This year, jake is 5 years older than his sister. three years ago, jake was twice his sister's age. how old is jake's sister now?
assign two variables and equations. solve.

J=jakes agenow
s=sister's age now

j is 5 more than sister
j=5+s

3 years ago (j-3 and s-3)
jake was 2 times sister
(j-3)=2(s-3)
find s

distribute
2(s-3)=2s-6

now we have
j-3=2s-6
we have
j=5+s
subsitute that (subsitute 5+s for j)
5+s-3=2s-6
add like terms
s+2=2s-6
subtract s from both sides
2=s-6
add 6 to both sides
8=s
his sister is 8 yeasr old

The answer is 270 cars.you can do this by making a proportional relationship. for instance, 200 is the whole we are using, so on a “number line” 200 would be over 100%. now, since he sells 35% more, add 35% to 100% to get 135% on the other side of the “number line” on the bottom half, leaving the top half empty.cross multiply 200 by 135 then divide by 100 to get your answer. i hope this , if it did, , if you don’t mind, giving me brainiest! 200/100% } 200 • 135 /100 ? /135%