Andre has 13 marbles. conel has 4 time as many marbles as andre. write an equation to solve for the number of marbles, c cornel has. then solve.

In a probability experiment, karen flipped a coin 76 times. the coin landed on heads 32 times. what percentage of the coin flips resulted in tails? round to the nearest percent. a. 58% b. 65% c. 42% d. 60%

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?