5) The height, h (in feet), of a ball tossed in the air is given as an equation of time, t (in sec). h() = −162 + 30 + 60
a) How long after the ball is thrown will the ball be 15 feet above the ground?
5a)
b) How long will it take the ball to reach the ground?

Yoku is putting on sunscreen. he uses 2\text{ ml}2 ml to cover 50\text{ cm}^250 cm 2 of his skin. he wants to know how many milliliters of sunscreen (c)(c) he needs to cover 325\text{ cm}^2325 cm 2 of his skin. how many milliliters of sunscreen does yoku need to cover 325 \text{ cm}^2325 cm 2 of his skin?

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Extra points! find the missing dimension! need asap