A company makes muesli which contains nuts and sultanas. They counted the number of nuts in 50 individual serving packets.
They drew this table.
Number of nuts
Number of
Midpoint (x)
packets (0)
4-6
5
3
fx
15
7-9
8
9
10 - 12
11
12
13 - 15
14
17
16 - 18
17
9
50
a)
b)
Complete the table.
Calculate an estimate for the mean.

What is negative 3/9 times negative 2/8 ?

2x minus y equals 6, x plus y equals negative 3

Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.