F(-3)=121=112-k(-3)
121=112+3k
minus 112 both sides
9=3k
divide by 3
k=3
Answer:
8 x 2.48 = 19.84
Step-by-step explanation:
We need to find the product for the expression 8 x 2.48.
First no is 8 and second no is 2.48
Product means to multiply.
We can write 2.48 as 
i.e.

Now, apply decimal after 9. So,
8 x 2.48 = 19.84
Hence, the correct option is (b).
Answer:
One robot will be powered for an eighth of a day (1/8 of a day) by one quarter (1/4) of a bag of coffee.