The surface area of a triangular prism is 78 square inches. What is the surface area of a similar prism that is three times as large?

2x+8y=54 x+9y=67 Solve the system by subtitution

A system of equation has no solutions. If y=8x+7 is one of the equation, which could be the other equation

3) Solve the following problem using a proportion and write your solution in a complete sentence. Sam bought 12 cookies for $3. How much would it cost him to buy 25 cookies?

Which system of equations has exactly one solution? 2 x - 4 y = 8. x + y = 7. 3 x + y = - 1. 6 x + 2 y = - 2. 3 x + 3 y = 3. - 6 x - 6 y = 3. 3 x - 2 y = 4. - 3 x + 2 y = 4.

A shopper uses a department store gift card to pay for 5 sweaters priced at $18 each. What is the change in value of the gift card?

What is the common denominator of 1/a + 1/b in the complex fraction (1/a - 1/b) / (1/a + 1/b) ? A) a2 b2 B) a - b C) a + b D) ab

Describe how to simplify the expression StartFraction 3 Superscript negative 6 Baseline Over 3 Superscript negative 4 Baseline EndFraction. Divide the bases and then add the exponents. Keep the base the same and then add the exponents.

Joshua and Kay are out for a walk on a rainy day. They come to the edge of a large, circular puddle that has a radius of 3 feet. Joshua is wearing boots, so he walks straight through the center of the puddle to the other side.

You have $250 to invest for 5 years at 3.5%. What will the total amount be in your account if it is invested using simple interest?

Carly and julia ran a 1 mile race. Carly runs 5/8 of a mile before stopping to take a break, and julia runs 7/8 of a mile before she stops to take a break. How much further each person has to run to finish the race