Estimate the area of the circle and use 22/7 for pie. the circle shows line all the way across measuring 28cm. find area. can someone explain and show your work. tysm

As a self-employed seamstress, you know that it takes 7 yards of material to make 3 jackets. you bought 15 yards of material to make 7 jackets. did you buy enough material? if not, how much were you over or under?

Miguel has 334 baseball cards and 278 football cards. he says, i have 612 cards in all. is that reasonable? explain using the words round and estimate.

Brainliest find the value of a^n b^n if n=3,a=100,and b=1/4