Mary is 3 years older than twice her brother's age, a. Which expression represents Mary's age?
A. 2a + 3

B. 2a - 3
C. 3a + 2

D. 3a - 2

Write the equation in logarithmic form m^x=n

Find solution of the linear equation y = 2/3x + 1/3

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.