Ronny and Johnny were getting ready for school. Ronny was the only one that had money to spend though, as Johnny spent 30 dollars last week on supplies. Ronny decided to buy a magazine about math that cost him $15.50 and he also bought four erasers. Ronny spent a total of $29.50. How much did each eraser cost Ronny?

Cost of one eraser is $3.5.

Step-by-step explanation:

Total money spent by Ronny = $29.50

from which he spent -

Math magazine = $15.50

and four erasers.

Let the cost of one eraser be x

cost of four erasers = 4x

Forming the equation -

Cost of one eraser is $3.5.

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation:

answer: 2530

hope this