Solve for z ( should be something in the form a+bi) (iz+4) / (z-3i) = 1-2i

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list