Johnny’s monthly expenses and income are listed below. calculate johnny’s debt-to-income (dti) ratio.
johnny's monthly debt and income housing:
rent $950.00 renter's insurance $25.00
credit: student $250.00 car $239.00 credit card #1 $25.00 (minimum) credit card #2 $40.00 (minimum)
income: sales rep $4,400.00 tutoring $600.00
a. 28%
b. 33%
c. 31%
d. 35

Find the given elements if matrix d:

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Solve this problem! extra ! 3025/5.5 = a/90.75