PLS HELPP Which expression is equivalent to (2^7⋅3^−5 ⋅9)^4? 2^7⋅3^−5⋅9^4

2^11⋅3^−1⋅9^5

2^28⋅3^−20⋅9^4

2^28⋅(−3)^20⋅9^4

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

What is 140% of 25? because i need

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?