Krissy predicted that she would sell 65 sweaters. She actually sold 85 sweaters. What are the values of a and b in the
table below?
Percent Error
Item
Sweaters
Approximate value
65
Error
Absolute error
Ratio
Exact value
85
Percent error
a
b
O a=-20,b=-20
O a=-20; b=20
O a = 20,b= -20
O a= 20; b= 20

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

If set d is not the empty set but is a subset of set e, then which of the following is true? d ∩ e = d d ∩ e = e d ∩ e = ∅

Mason and christian go to the movie theater and purchase refreshments for their friends. mason spends a total of $45.75 on 3 bags of popcorn and 6 drinks. christian spends a total of $71.50 on 6 bags of popcorn and 4 drinks. write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. using these equations, determine and state the price of a drink, to the nearest cent.