Several functions represent different savings account plans. Which functions are nonlinear? y = 7.25 +x ^2

y = 0.5(x)2

y = 5.52 + 7

y = 5.5(1.02)

y = 7. 25.2

P= $1400,300 r = 7 1/2% t = 4 what is i ? $4.29 $429.00 $4290.00

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?

How can writing phrases as algebraic expressions you solve problems?