Chelsea is sitting 8 feet from the foot of a tree. From where she is
sitting, the angle of elevation of her line of sight to the top of the tree
is 36º. If her line of sight starts 1.5 feet above ground, how tall is the
tree, to the nearest foot?
(1) 8
(3) 6
(2) 7
(4) 4

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

Iwill give you ! what is the measure of ∠v ?

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years