Answer:
Therefore, Olivia should buy 10 apples and 8 bananas to maximize her utility.
Explanation:
Let A represent the number of apples bought and B represent the number of bananas bought. Therefore since Olivia has $4 to spend:
0.2A + 0.25B = 4 (1)
Also, the tangency condition can be used to find the optimal amount of A to relative to B. It is give as:

Put B = 0.8A in equation 1:
0.2A + 0.25(0.8A) = 4
0.2A + 0.2A = 4
0.4A = 4
A = 10
B = 0.8(A) = 0.8(10) = 8
Therefore, Olivia should buy 10 apples and 8 bananas to maximize her utility.
The product’s equilibrium price
Just simply because the price and quantity is the same
Answer: Sara must take a break and come back later.
Explanation: Have you ever struggled with hard problem and found that no matter how much you tried to figure it out, the answer just won’t come to you? This is an all-too-common problem for scientists, philosophers, mathematicians, novelists, musicians, and countless intellectuals alike. But as anyone who wrestles with creative/intellectual problems on the regular will tell you, the solution to a tough problem will often come at a time when they are not focused on the problem directly. To the contrary, solutions to problems often come when they are doing completely unrelated, like taking a walk or in the shower. Working for long stretches without breaks leads to stress and exhaustion. Taking breaks refreshes the mind, replenishes your mental resources, and helps you become more creative. Problem-solving may seem straightforward at first glance, but there are many employees who stumble over one or more of the critical steps, failing to successfully resolve workplace issues. Successful problem-solving requires several important skills that will help you proceed efficiently from identification to implementation.
It depends on the property and location.