Answer:I think its D
Step-by-step explanation:
Answer:
6x + 3y
Step-by-step explanation:
Multiply 3 by 2x.
Multiply 3 by y.
This is known as the distributive law.
54 buttons ÷ 9 button cards = 6
She should buy 6 cards of buttons.
160 adults and 80 students seems to be correct
Answer:
yes
Step-by-step explanation:
The graph is of a function (one output for every input) that also passes the horizontal line test (one input for every output). Hence it is one-to-one.
For a <em>function</em>, the key for it being one-to-one is that it pass the horizontal line test.