please help with all 3 will thumbs up

Blaser Corporation had $1,060,000 in invested assets, sales of $1,244,000, operating income amounting to $210,000, and a desired minimum return on investment of 13%. The return on investment for Blaser Corporation is Round the percentage to one decimal place. a. 23.8% b. 16.9% Oc. 19.8% Od. 13.5% Sage Company is operating at 90% of capacity and is currently purchasing a part used in its manufacturing operations for $18.00 per unit. The unit cost for the business to make the part is $22.00, including fixed costs, and $11.00, not including fixed costs. If 39,972 units of the part are normally purchased during the year but could be manufactured using unused capacity, the amount of differential cost increase or decrease from making the part rather than purchasing it would be a a. $719,496 cost decrease b. $279,804 cost decrease Oc. $279,804 cost increase Od. $159,888 cost increase Blaser Corporation had $1,060,000 in invested assets, sales of $1,244,000, operating income amounting to $210,000, and a desired minimum return on investment of 13%. The return on investment for Blaser Corporation is Round the percentage to one decimal place. a. 23.8% b. 16.9% Oc. 19.8% Od. 13.5%