There are 15 students And a social studies class. Two students will be selected to present their term projects today. And how many different orders given to students to be selected?

A. 849

B. 105

C. 420

D. 210

Answer to - 8x+2x-16<-5x+7x

Suppose that the perimeter a rectangle is 54 feet, and the length is 13 feet more than the width. Find the width ractangle, in feet.

Harmony places the letters in the word December into a bag. A letter will be randomly selected and not replaced. Then another letter will be selected. What is the probability of harmony selecting a c and then a e.

Factor binomial - 16r^2+1

If the greatest value of n is 9, which inequality best shows all the possible values of n? n ≤ 9 n ≥ 9 n < 9 n > 9

If a 40 foot tree casts a 12 fr shadow, find the length of the shadow cast by a 28-foot tree

I need to simplify - 4x + 5 + 9x - 2 if x=6

The profit in dollars, of selling n items is given by P (n) = 0.98n-3,000. Find the vertical intercept and the slope and explain their meaning. (basic linear function)

Which of the following is the inverse of the statement "if I like carrots, then I like vegetables

Ryan is installing new flooring in his house. Ryan can install 225 square feet of flooring in 2 hours. How much new flooring can Ryan install in 16 hours? A. 3,625 square feet B. 3,600 square feet C. 240 square feet D. 1,800 square feet