At the skate park, a new concrete ramp is built in the shape of a right triangular prism, as
shown
15 it
9 ft
20 ft
12 ft
How many cubic feet of concrete are used to
build the ramp?
O 1,080 ft
• 1,350 ft
O 2,160 ft
O 3,600 ft

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no