part c please

Hart Labs, Inc ptovides madoow discase teting for both state and federai esvernrrental asticultur a agencies Bechase the control its testing costs. Shown below are the standard costs for a typicad tese The lab does not maintain an imventory of test tubes. As a result, the tubes purchesed each month are ysad that magnth. Actual activity for the month of Novamber 2020 , when 800 tests were conducted resu ised in the follanis, Monthly bodgeted foxed overhead is 515,600 . Revemues for the month were $52,000, and selling and administrative expenses were 55,500 Compute the price and quantity varianoes for direct materialsand direct laher. (b) Comosite the tutal overhead variance