The bill for a meal at a restaurant is $105.95.if the customer leaves a 20% tip, what is the total cost of the meal with tip

How can we find the measure of an exterior angle if we know the measurement of an interior angle

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0