There are 9 red sticks and 16 blue sticks in a bag. Use a decimal number to express the probability of drawing a red stick from the bag.

0.36

Step-by-step explanation:

Probability of drawing a red stick from the bag will be number of red sticks in the bag divided by the total number of sticks in the bag

Number of red sticks = 9

Number of blue sticks = 16

Total = 9 + 16 = 25

Therefore

Probability = 9/25

= 0.36

She used 12 cups of flour.

Make a proportion to where 8/8 equals 32.
3/8 equals ?/32
Then cross multiply and divide.
32 x 3 = 96
96/8 = 12

You can also think of it like this. What number times 8 will get you 32?
Well that’s 4.
So 3 x 4 = 12
Since they are proportions of each other what the bottom is multiplied the top must be as well