Which equations could you use to solve the following problem?

Seventy-eight is 55% of what number?

78 = (0.55) w

p = (0.85) 78

x/78 = 55/100

78/x = 55/100

The denarius was a unit of currency in ancient Rome. Suppose it costs the Roman government 101010 denarii per day to support 444 legionaries and 444 archers. It only costs 555 denarii per day to support 222 legionaries and 222 archers.

Fit two 1/8 pieces together. what larger fraction piece do they match?

Put this in order from greatest to lease these are fractions 1/8 3/6 and 7/12

How many quarts in a gallon example

An afterschool program offers tutoring for different subjects during the last month, a teacher recorded the number of students who participated in tutoring in each subject as shown in the table below.

A scientist estimated that a mixture would need 5 millimeters of a chemical to balance. The actual amount d was 7 millimeters. What was the percent error of the scientists estimation?

Start at 7 and subtract 3each time

Suppose you know the area of a circle and the measure of the central angle of a sector. Describe the process of finding the area of the sector.

Cups are sold 8 a package and plates are sold 12 to a package. If you want to have the same number of each item for the party, how many of each do you need to buy? what is the least number of packages of each you need to buy?

What is the formula for the sum of an infinite geometric series