The sum of two facing page numbers in a book is 145. What are the two page numbers ?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints