The following computer printout was generated, using regression, for use in estimating overhead costs. Intercept 8300 X Variable 1 37 Multiple R 0.9500 R Square 0.9025 Activity variable machine hours The cost formula would be: Select one: a. $8,300 - $37X b. $8,300 + $37X c. $8,300 x 0.95 d. $8,300 + ($37 x 0.9025)