-3 4 -7 -9
B
-42 -20
Given: A
and C-
1
0
4
-1
4
What is the value of X in the matrix equation AX + B = C?
X=
2.75 -26.25
1.75 -2.75
1
X=
5
8
-1
101
13
-35 -11
9
3

Abank manager wants to encourage new customers to open accounts with principals of at least $2 comma 500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?