Help me please with this question

Evaluate the integral. (sec2(t) i t(t2 1)8 j t7 ln(t) k) dt

Evaluate the following expression 1/3^2

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?