find the first 4 terms of the sequence defined by the explicit rule f (n) = 7 (n-1) - 10. Is it an arithmetic sequence?

Terry has about 20 keys which number could be the exact number of keys that terry has

What is the area of the regular hexagon with a side length of 3 cm and an apothem of 2.6 cm? A. 15.6 cm2 B. 23.4 cm, 2 C. 46.8 cm, 2 D. 31.2 cm, 2

The faces of a cube are painted so that any two faces which have an edge in common are painted different colors. What is the smallest number of colors required? 2 3 4 5 6

The following expression has been simplified one step at a time. Match each step with the property used to get to that step. (Note: The column that lists the algebraic expressions is already in the correct order.) (6x + 3) - 5x 1. (3 + 6x) - 5x 2.

How many boxes of envelopes can you buy with $12 if one box costs $3?

A veterinary researcher takes an SRS of 60 horses presenting with colic. The average age of the 60 horses with colic is 12 years. The average age of horses seen at the veterinary clinic was determined to be 10 years.

Which ordered pair is the solution to y - x = 3 and 2x + y = 9?

Sally is interested in taking a job in a city which she's not familier with the cost of living. She is especially concerned about the cost of housing and is interested in the average cost of a three bedroom home.

A skating rink charges $0.75 to rent skates and $1.25 per hour to skate. How many hours did Penny skate if she was charged $4.50?

Simplify 1/3 12x - 6 A. - 2x-1 B.-2x-8 C.-x+4 D. 3x+10 E. 4x-2