Which sequences are geometric? Check all that apply. 5, 10, 20, 50, ellipsis
3, 12, 48, 192, ellipsis
3, 15, 75, 375, ellipsis
8, 15, 75, 375, ellipsis
14, 21, 28, 35, ellipsis
17, 20, 23, 26, ellipsis
2, 10, 50, 250, ellipsis

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

Bring the fraction a/a-4 to a denominator of 16-a^2

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?