Can someone help and explain how to do this?

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

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?

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5