39-23= 16. Mary ran 16 miles
Answer:
AC = 8x - 4
Step-by-step explanation:
AC = AB + BC
AC = 6x - 7 + 2x + 3
AC = 6x + 2x - 7 + 3
AC = 8x - 4
Answer:
Step-by-step explanation:
Answer:
12 is 52 i think. i am not sure about 11.
Step-by-step explanation:
im so sorry i know 11:(
I hope this helps on 12 tho
A+B: the matrix with same dimension a A and B, the element in row i and column j is: Aij+Bij
Same for A-B, but with Aij-Bij