If I got an 16/18 on my test, my current grade is a 92.3,

Will that bring my grade up or down?

What grade is it? (Letter)

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Hi, can anyone show me how to do this problem? 100 points for this. in advance