Please help solve. Lydia started collecting seashells when she was five years old. At age seven, Lydia had 12(10) ? seashells. At age nine,
Lydia had 24(10) ? seashells. At age eleven, Lydia had
48(10)? seashells. Lydia wants to collect 75(10) 3 seashells.
Lydia continues to collect seashells at the same rate.
How old will Lydia be when she has 75(10): seashells?
Show all your mathematical thinking. Lydia will be 13 when
she has 75(10)

What's the denominator

Iam not sure , but probably 750 or 7.5

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%