Solve the equation. then check your solution. 1/2(15 + 7d) =-d/4
a. 3
b. 2
c.-4
d. –2

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

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.

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =