He difference of a number 40 and a number is 30. What is the number? a. 10
b. 11
c. 15
d. 20

The table above shows approximate conversions from gallons to liters. what is the value of x?

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?