If c = 4 and d = 5, find cd.
54
04:5
o 1:5

I think

Step-by-step explanation:

If c is 4 and d is 5 and you want to find cd, wouldn't you just multiply 4 and 5. That gives you 20

It would be 20. In algebra, putting two letters together means multiplying.

For example, if X = 3,

2x would be 2 x 3 which = 6

2

$15.40 per mile

step-by-step explanation:

you have to round up to 4 because 6 is over 5 so you have to round the 3 up to 4