Harper needs to mail an envelope. She
weighs it at home as 10.4 ounces. When
she gets to the post office, the clerk
weighs it at 9.6 ounces. What is the
percent error in the weight of the
envelope?

Write an explicit formula that represents the sequence defined by the following recursive formula:

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8