A 3-tier wedding cake is made using 6.4 kg of mixture. The weights of the tiers are in the ratio of 2 : 5 : 9. What is the weight, in grams, of the smallest tier? (SHOW WORKING)

you never say the total so we cant find the percentage used for petrol

step-by-step explanation:

step-by-step explanation:

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: