Answer:
<3, 7> and [3 7], b and c
Step-by-step explanation:
multiply the vector by the matrix {1 0} (top row) {0 -1} bottom row. So you flip the sign of the -7 and this gives us +7.
16.89 x 78.91 = 1,332.7899
I'm not sure what it is equivalent to.
Answer:
One student has lived in 7 states
Step-by-step explanation: