She paid 10 in advance so that's 30-10 which is 20.
As it's 4 dollars per hour, 20 will be divided by 4.
20/4 = 5
So 5 hours.
Step-by-step explanation:
The correct answer is 946
c=946
4.50/6.00 equals .75 times 100 is 75 percent
Eighty percent of 320 students is 0.80(320 students) = 256 students.
268 divided by 4 is 67
So it costs 67p for one choc ice
And then you do 67p x 11 which is 737pence