Selena is y years old and her sister molly is 4 years older than selena write an expression in simple form that represents the sum of the ages of the sisters

Katlyn made 4 dresses with 7 yards of fabric. how many yards did she use on 1 dress?

What is sin 7x/4 ? i need on this urgent trig

4. bob solved the inequality problem below incorrectly. explain his error and redo the problem showing the correct answer. −2x + 5 < 17 −2x + 5-5 < 17-5 -2x/-2 < 12/-2 x < -6