Kayla Tyler sells gifts certificates for $$69$ each. She purchases each gift certificate for $$30$ and spends $$5,100$ for fixed costs.

Do not enter dollar signs or commas in the input boxes.

Round your answers to the nearest whole number.

a$)$ Calculate operating income if Kayla sells $370$ gift certificates

Operating Profit: $Answer

$9330$

b$)$ Calculate the revenues needed to obtain an operating income of $$4,100.$

Required Revenue: $Answer

$16469$