A red shirt costs $16 and a green shirt costs $8. How many times as much does the red shirt cost as the green shirt?

2 times

3 times

4 times

5 times

Which shows one way to determine the factors of  x3  +  5x2  –  6x  –  30 by grouping? x(x2  –  5)  +  6(x2  –  5)x(x2  +  5)  –  6(x2  +  5)x2(x  –  5)  +  6(x  –  5)x2(x  +  5)  –  6(x  +  5)

Which of the following is true for the relation f(x)=2x^2+1

The trigonometric ratios sine and secant are reciprocals of each other