Answer:

Step-by-step explanation:
What's your question so I could help?
Since Pauline spent $7.50 for 3 days, all you have to do is multiply 7.50 by 3 to get 22.50. Your answer would be D.<span>(7.50) × (3) = 22.50; She spent $22.50.</span>
Hope this helps,
♥Nikki♥
To solve this problem you must apply the proccedure shown below:
1. You have that a <span>grapefruit is 8% heavier than an orange and an apple is 10% lighter than the orange. Therefore, let's give a value to the orange as following:
Orange=1 kg
2. Therefore, you have:
Grapefruit=1 kg+(0.08x1 kg)=1.08 kg
Apple=1 kg-(0.1x1 kg)=0.9 kg
3. Therefore, what</span><span> percentage is the grapefruit heavier than the apple?
%=(0.9/1.08)100-100
%=16.66%
The answer is:</span>16.66%