Which equation represents a linear function?

Equation 1: y = 2x^2 + 1

Equation 2: y^2 = 3x + 1

Equation 3: y = 5x - 1

Equation 4: y = 4x^4 - 1

Nelson will start the fire with 6 logs and then plans to add 3 logs for each hour the fire burns. Represent the number of logs he will use as an algebraic expression.

What is the volume of a sphere if it has a radius of 5 inches? (Use 3.14 for π.) 1,570 in. 3 523.33 in. 3 294.38 in. 3 1,177.5 in. 3

Mrs. Smith decides to build her own vegetable garden. She goes to Home Depot and buys material to build beds for the vegetables she'll grow. The beds are big wooden boxes. Each bed is 10 feet long, 5 feet wide, and 1 % feet tall.

How to Find 2/9 of 4 1/7

Devon's teacher requires that students show each step in solving a problem. Devon wrote the following when solving the equation x - 7 = 20: x - 7 = 20 x - 7 = 20 + 7 x = 27 The teacher said that Devon's work was not shown correctly.

What is 38/439 reduced

I can evaluate expressions if J=3 K=6 M=12 8 (M-K) + 5

Which rate is equivalent to the unit rate of 14 miles per gallon? two gallons over thirty two miles thirty two miles over two gallons three gallons over forty-two miles forty-two miles over three gallons

It takes Ramirez family 3 days to travel 1,560 miles, how many days will it take them to travel 6,640 miles?

What two numbers multiply to 12and add to - 7