Angie baked 100 cookies, and 20 brownies. she wants to split them into equal groups for the bake sale .each group must have the same number of cookies and brownies , with none leftover. what is the greatest number of groups she can make?

Hi my sisters and brothers can tell me the answer because i don’t understand the question

The area of a rectangle is 54x^9y^8 square yards.if the length of the rectangle is 6x^3y^4 yards,which expression represents the width of the rectangle in yards

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?