In a geometric sequence, the first term, a1, is equal to 3, and the fourth term, a4, is equal to 192. Which number represents the common ratio of the geometric sequence? A. R=4
B. R=6
C. R=5
D. R=7

Plz help me! Before in 7mins.

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?

John has 1/2 pound of oranges to share with julie. if they share the oranges equally, how much will each of them have?

Compound inequalities. , i’m being timed