Evaluate. −[4.2−3(2.1)](−0.2)^2 +1

What is the value of the expression?

Enter your answer as a decimal in the box.

A. 98
B. 64.5
C. 53.5

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)