Answer:
1st pic: Answer is 3
2nd pic: Answer is 5
3rd pic: Answer 4
Step-by-step explanation:
40 + 30s = 220
30 for each student (s) and the one charge of 40 would get the tutor 220 dollars.
By remainder theorem:
f(x) = x³ - 2
factor, x - 1 = 0
x = 1,
Remainder = f(1)
f(x) = x³ - 2
f(1) = 1³ - 2 = 1 - 2 = -1.
Hence remainder is = -1.
If the cakes are circles,
3.14(4)2= 50.24
3.14(5)2= 78.5
78.5-50.24= 28.26
#1 is 28.26