For an arithmetic sequence where a1

= 13 and the common difference is 3, find s7

.

A. 162

B. 154

C. 151

How can you show the number 54 two different ways? explain using your words.

Solve this problem 6.3=0.9y

What is 1/7 of 49 ...

Courtney has $50 to spend at the county fair. She spends $10 on admission and $15 on snacks. The games at the fair cost $1.25 each. Which inequality could be used to find the maximum number of x games that Courtney can play while at the fair?

Let X denote the life of a semiconductor laser (in hours) with the following probabilities: P (X ≤ 5000) = 0.05 and P (X > 7000) = 0.45. a. What is the probability that the life is less than or equal to 7000 hours? b.

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. The solution set of n2 - 14n = - 45 is [ ]

Peter is 2 years older than Winnie. Peter's age is 16 years less than seven times Winnie's age. The equations below model the relationship between Peter's age (p) and Winnie's age (w): p = w + 2 p =

Name a fraction equivalent to 2/3

The teacher has 15 gold prize ribbons, 22 blue ribbons, and 5e red ribbons. There are 12 boys and 18 girls in the class.

3 (6x^2-5x+7) - 2 (-4x^2+8-10)