Because, if 6 + 6 = 12, then in 6 + 7, 7 can be splitted into 6 + 6 + 1, and so you find it easier...!!
D.) y= 0.3x
This is because slope is change in y over change in x, so we get 3/10 which is equivalent to 0.3
Which one the first three???
Answer:
Jenny has 50 marbles
Step-by-step explanation:
I find it easiest to right down the numbers as I read the question,
(9+10-4) x3 +7-2