7th grade math help me pleasee :).

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

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?

Write the equations in logarithmic form 7^3=343