18 Heather and Adam both solve the same problem 2(3r-6) = 10r - 10. Which one of them is correct?
Adam
2(3r-6) = 10r - 10
6r - 12 = 10r - 10
-12 = 4r - 10
-2 = 4r
1
r=-
2
Heather
2(3r -6 ) = 10r – 10
6r - 6 = 10r - 10
-6 = 4r -10
4 = 4r
r = 1

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

The school that imani goes to is selling tickets to the annual dance competition. on the first day of the ticket sales the school sold 7 adult tickets and 5 child tickets for a total of $96. the school took in $40 on the second day by seling 3 adult tickets . find the price of an adult ticket and the price of a child ticket. solve by using substitution elimination college prep algebra math heres the 2 equations i came up with 7x+5y=96 and 3x+2y= -40 show all workiv be stuck on this.

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =