How do you find the percent error of an estimate and the actual number

A technical writer makes $45,000 per year and has just begun contributing 8% of her salary to her 401 (k) plan. If her employer matches 6% of her contributions, how much will have been contributed to the 401 (k) plan after 2 years? A. $7632 B.

What, roughly, is the percent uncertainty in the volume of a spherical beach ball whose radius is r = 5.94 + - 0.04

Melanie made a circular necklace. She puts beads evenly spaced around the necklace. If the 4th bead is directly across from the 11th head, how many beads are on the necklace

What is the slope in the equation y = 3x + 7

Which pair of angles shares ray A F as a common side? DAF and DAB EAF and CAE BAF and EAD BAF and FAD

What is 3 (x-8) - 5=9x2+1?

What is one and a half full turns

Describe in your own words what a dilation is.

Divide 72 into 2 groups so the ratio is 3 to 5

Ella's geometry teacher asked each student to devise a problem and write out its solution. Here is Ella's work: A triangle has side lengths of 10, 11, and 15.