J, L, and T took a quiz. L’s score was 12 less than T’s score and 3 times J’s score. Lastly, J’s score was 1/9 of T’s score. What was T’s score? I need this made into an equation please! Asap

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

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 =