Answer:
m=25/12
Step-by-step explanation:
multiply the reciprocal of 2/5 on both sides
Answer:
5
Step-by-step explanation:
25/5
5×5=25
5 <---answer
Answer:
Each pencil costs 20 cents
Step-by-step explanation:
2.40 - 1 = 1.40
1.40/7 = 0.2
Answer:
|x |-7 = -5 ( x = -3 )
Step-by-step explanation:
Answer:n=-2 or n=4
Step-by-step explanation:
Q is not inversible if det(Q)=0
