Answer:
20
Step-by-step explanation:
Charle would have spent that much because one pound is 2.50
15 divided by 6=2.50
2.50x8=20
78
because 5 times 2 equals 10 so then u times 39 times 2 and get 78
Answer: -2
Explanation: The coefficient is the number to the left of the variable.
Another example would be that 10xy has the coefficient 10.
Something like x^2 has coefficient 1 because x^2 = 1x^2.
U just need to turn the diagram to the way you can understand it
