Mr. jan brought in cookies for her class. she gave out half of them this morning. at lunch, she gave out 12 more. she then had 10 cookies left. how many cookies did she bring in?

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Question 3(multiple choice worth 1 points) use the arc length formula and the given information to find r. s = 16 cm, θ = 48°; r = ? sixty divided by pi cm thirty divided by pi cm one third cm one hundred twenty divided by pi cm

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625