Mariko and her friend spent $24.50 on lunch. Their lunches cost the same amount,
and they used a $4 off coupon. Determine
the cost of each lunch. ​

Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Cate purchases $1600 worth of stock and her broker estimates it will increase in value by 4.2% each year. after about how many years will the value of cate's stock be about $2000