Answer:
1.2981614e+19
Step-by-step explanation:
you can always use a calculator for powers.
Answer:
89.51%
Step-by-step explanation:
Assuming given units are in cm
Tge rate of filling the cup is 70/2= 35 cm3/s
Volume of the cup is
and replacing r with 4 cm and h with 7 cm then the volume is equivalent to

Volume filled after 3 seconds will be 3*35=105 cm3
Percentage filled is 
Answer: 4
Step-by-step explanation:
Let's make a table.
So we know that for 24 minutes, Heather can ring up 36 customers. Now, to get 6 customers, you need to divide 36 by 6.
So
36 = 24
/ 6 /6
_______
6 = <u>4</u>
Answer:
£70.00
Step-by-step explanation:
You basically want to find what she spent in total, then subtract the amount she spent on ingredients.
50 glasses of lemonade at £2.10 each would be £105. (50*2.1)
Subtract the cost of ingredients, which is £35, with the total she made, £105, to get £70 (105-35)