David hikes 2 1/4 miles in 1/2 an hour. his rate is 4.5. at this rate, how long will it take him to walk 18 miles

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.