Can someone help me with this please. The function g, defined by g (x) = -5x² + 10x + 7.5 models the height of a golf ball on a cliff overlooking a pond (in feet), seconds after the golf ball leaves the ground. Use an algebraic strategy to get exact, simplified answers with units. For each question, show all work and explain how and/or why you know.
1. How high above the water is the cliff?
2. When does the golf ball hit the water?
3. At what time during its descent toward the water is the golf ball at the same height as the cliff?
4. When does the golf ball reach the maximum height?
5. What is the maximum height the golf ball reaches?

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

imma say 16%. sorry if its wrong. i'm doing the same stuff right now

step-by-step explanation:

answer: 800

step-by-step explanation: