Answer:

Step-by-step explanation:
Given
x ----- y
0.5. --- 0.8
1. --- 1.6
3.--- 4.8
25. --- 40
Required
Determine the constant of proportionality
This can be calculated using the following formula:
; Where r is the constant of proportionality;
Solve for r

When x = 0.5; y = 0.8


When x = 1; y =1.6


When x = 3; y = 4.8


When x = 25; y = 40


Notice that the value of r is constant throughout;
Hence:

Answer:
35.72
Step-by-step explanation:
38% of 94:
38 * 94 = 3572
3572/100
35.72 You could round it to 35 if you want.
Have a nice day.
Answer:
$147
Step-by-step explanation:
she has 6 Gran children
Spends $24.50 on each
on six children $24.50. multiplied by 6