Answer:
4
Step-by-step explanation:
Quarter hour on chemistry
Quarter hour on class 2
Quarter hour on class 3
Quarter hour on class 4
Total time....One hour
Answer:

Step-by-step explanation:
The length of a chalkboard, l = 1.7
The width of a chalkboard, b = 0.9 m
We need to find the area of the chalkboard. The formula for the area of a rectangle is given by :

So, the area of the chalkboard is equal to
.
All you need to do is multiply the two together
12 times 16 = 192 copies
Answer:
yes, it's a function
Step-by-step explanation:
A function relates one input to one output, and it's "only" one output.