Lee baked 50 cookies. He gave some to a friend and ate 50% of the remaining cookies. He had 15 cookies left. What percentage of the cookies did he give to his friend?

Two standard dice are rolled. What is the probability that the product of the 2 numbers rolled exceeds 8?

what is 421 divide by 2.54

A football team receives the ball on their own ten yard line. They make a gain of fifteen yards in the first play. What yard line is the ball on? What represents zero in this situation? Explain

Evaluate the indefinite integral as an infinite series ∫sinx / 2x dx

The width of a rectangle is 1/2 of its length. what are the sides of the rectangle if its perimeter in 63 in?

What are the coordinates of the focus and the equation of the directrix? A. focus:; [-1/4, 0]; directrix: x = 1/4 B. focus:; [1/4, 0]; directrix: x = - 1/4 C. focus: (-4,0); directrix: x = 4 D. focus: (4,0); directrix: x = - 4

What's the circumference and area of a circle with a radius of 9 km

Is y=5-2x linear or nonlinear?

Saul got 19 out of 25 on the test. Cindy got 79% on a same test which student got the higher mark?

A long-stay parking lot charges an intimo fee of $10, plus $2 for each day the car is parked. How many days must the car be parked for the average cost per day to fall to $4