three hundred eighty-nine billion, nine hundred thirty-six million, two hundred six thousand, seven hundred sixty-seven in standard form

What is the number 321,000,000 in scientific notation? also what is the number? ?

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?

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?