Pls with 7,8,9 i will say thx for it

Let's do this.

7. 2880 ÷ 12 = $240 per month are put into his savings. 240 ÷ 3 = 80, and 80 × 20 = 1600. Ryan gets paid $1600 a month.

8. 318.50 × .3 = 95.4, so $95.40 gets taken off, making them pay $223.10.
With their other coupon, another $33.47 will be taken off, making the final price $189.63.

9. 41.2218649697%, which can be rounded up to 41.22%

Hope this helped.