Keith and michelle went out to dinner the total cost of the meal including the tip came to $53.70 if the combined tips came out to be $9.60 and meet friends with an equal amount how much did each friend pay not including the tip

For the equations below which statement is true ?

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)