Question 3 (1 point) What is the area of the triangle?

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a
30 units squared
b
25 units squared
c
11 units squared
d
15 units squared

Ineed with number 17 i don’t get it at alll

Divide: 1573 ÷ 7 = a) 222 r5 b) 223 r6 c) 224 r5 d) 224 r3

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?