For the following system, use the second equation to make a substitution for x in the first equation.
x + 5y - 10 = 0
x = 2y - 8
what is the resulting equation in simplest form?
-3y - 18 = 0
3y - 18 = 0
7y - 18 = 0
7y + 18 = 0

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)