In the graveyard, the Gravedigger realized there were 39 new tombstones to 63 old tombstones. If there were 315 old tombstones, what is total number of tombstones in the graveyard?

Two parallel lines are crossed by a transversal. what is value of x

Given sin∅ = 1/3 and 0 < ∅ < π/2 ; find tan2∅ a. (4√2)/9 b. 9/7 c. (4√2)/7 d.7/9

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?