What is the difference between the "Substitution method" and the "linear combination method"?

Write an equation for Greg ordered some books online for $6 each. He paid a total of $3 for shipping. The total cost of the purchase was $75.00. How many books did he buy?

You have a 20 dollars iTunes gift card. You decide to buy some songs for 1 dollar per song. Linear or Exponential

A+9 write this in a verbal expression

Finish the sentence: the exterior angles on any regular polygon will always add up to? ...

Felicity's dog eats two cups of dog food per day. Felicity's dog eats at least one-quarter cup more than one-half of the amount Martin's dog eats.

There are 4 sectors in a circle graph. Their measures are 36 degrees, 160 degrees, 56 degrees. Find the missing measure. 360 degrees 252 degrees 108 degrees

the pillars of a temple are cylindrically shaped. of each pillar has a circular base of radius 280 cm and height of 10 m how much concrete mix will be used to build 14 such pillars

Almonds sell for $4.50 per pound, and granola sells for $6.75 per pound. Terri bought some almonds and some granola. The total weight was 2.5 pounds and the cost was $15.75. How many pounds of almonds and how many pounds of granola did Terri buy? A.

Your class is having an election. There are 4 candidates for president, 6 for vice president, 3 for secretary, and 7 for treasurer. How many ways can a president, vice president, secretary, and treasurer be chosen?

Consider a company that selects employees for random drug tests. The company uses a computer to randomly select employee numbers that range from 1 to 6857 6857. Find the probability of selecting a number divisible by 1000.