Use cross products to determine which of the following pairs of ratios cannot form a proportion.

A. 1/3,3/9 B. 2/3, 4/9 C. 2/3, 4/6 D. 1/3, 2/6

How can I solve this question step by step? In the interior angles of a regular polygon sum to 1260 degrees. how many sides does it have?

What factors of 20 are also factors of 50

What is the GCF of 60 and 24

Tom owes $442.51 on his credit card. He returns two items, one for $52.48 and the other for $46.45. Then he makes purchases of $39.68 and $37.58. What is the new balance on the card?

The Briarwood Middle School chess club has 55 members. 22 of the members are in seventh grade. What percent of members of the chess club are in seventh grade?

8 22/66 in lowest terms

The exponential function y (x) = ce^ax satisfies the conditions y (0) = 2 and y (1) = 1. find the constraint of c and a. what is y (2) ?

Ten children equally share 60 almonds. How many almonds will 5 children get?

The game of European roulette slots: 18 red, 18 black, and I green. A ball is spun onto the wheel and will eventually land ina slot, where each slot has an equal chance of capturing the ball. Gamblers can place bets on red or black.

What is the equation for an arithmetic sequence with a first term of 6 and a second term of 2?