Solve the system of equations using substitution.

{y=9x

6x-y=-1

Which of the following is a Pythagorean triple? A. (5, 12, 13) B. (1, 1, 2) C. (3, 4, 6) D. (5, 8, 10)

A round cake has a diameter of 30 cm. Angela places the cake on a circular cake board with a diameter 5 cm longer than that of the cake. What is the circumference of the cake board? Give your answer in terms of T.

Chloe used two box plots to display some data. The box in the plot for the first data set is wider than the box for the second data set. What does this say about the data?

Item 20 You are riding a roller coaster when a shoe falls off your foot. The function y=200-16t2 represents the height y (in feet) of the shoe t seconds after it falls off your foot. The shoe lands on the top of a 31-foot-tall building.

Kayla is preparing for winter and is knitting gloves. She can knit two pairs of gloves in 5 hours. How many hours will it take kayla to make 7 pairs of gloves

Given the speeds of each runner below, determine who runs the fastest. Katie runs 14 feet per second. Zach runs 576 feet in 46 seconds. Tony runs 1 mile in 533 seconds. Will runs 827 feet in 1 minute.

What is the mean average diviation

If (x + 1) (x - 3) = 5, then which of the following statements is true?. x + 1 = 0 or x - 3 = 0. x + 1 = 5 or x - 3 = 5. x - 4 = 0 or x + 2 = 0

14kg is equal to many Ib

The number of people arriving for treatment at an emergency room can be modeled by a Poisson process with a rate parameter of four per hour.