A fraction is said to be in its lowest terms if the numerator and denominator have no common factor ? True or False

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.

The price of one share of a company’s stock declined $13.89 every day for 2.5 days what was the stocks total decline in price