D=17 f=3 0.9d-2.7f
pls answer

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?

John has 1/2 pound of oranges to share with julie. if they share the oranges equally, how much will each of them have?

What is the value of the product (3-2i)(3+2i)?