Answer: 20+35=55+20=75

Step-by-step explanation:
Answer:
15 feet
Step-by-step explanation:
What rectangular prims, what do you mean?!?
It takes longer for one person to flip five batches of two pennies than one batch of ten pennies, mainly for a simple reason: although 5 x 2 is equal to 10, that is, it will take the same time to flip the coins, 5 batches is greater than 1 batch, which will take longer to manipulate each of these, increasing the total time.
Learn more about maths in brainly.com/question/21477139