What is the value of this expression if c=4

An arrangement of marbles has 12 marbles in the first row and 10 rows in all. In each successive row one marble is added.

What are the diameter and radius of a circle with a circumference of 32π ft? A. d = 16 ft r = 8 ft B. d = 32 ft r = 16 ft C. d = 16 ft r = 32 ft D. d = 8 ft r = 16 ft

3 (144x+111) > 2,061 Don't know what it is

Solve k (h-j) + h with h=5, j = - 4, k=5

If x varies as y, and x=11 when y = 15, find x when y=3

All numbers divisible by 22 and 24 are also divisible by which of the following? 221 132 204 250 154

What is the fraction 6 over 11 written as a decimal

Expanded form for 9,032,504.75

What is the value of 10 (4-7) / - (4-1)

Jin and Chen are painting a fence. Each plank in the face takes one person about 3 minutes to paint. If there are 8 sections of fence with 12 planks in each section, about how many hours will it take Jin and Chen to do the job?