Marie’s takes 22cent from her coin bank now she has 49cent left how much money did she start with

With this question, we work backwards. If she took 22 cents and now has 49 cents left, we have to add the 22 cents back in to find the original total.

= 49 cents + 22 cents
= 71 cents original total

ANSWER: She started with 71 cents

Hope this helps! :)

Dhope this

C. cos 90 = 0 you can see this in the unit circle