Find the circumference of a circle with a diameter of 15 inches. Round to the nearest tenth and include units in your answer.

An alien has just landed from the planet, iksnimak. he would like to leam how to add two fractions when thedenominators are the same. write a paragraph that explains to our alien friend, in your own words, the detailsabout how to add the fractions, how to change the result to a mixed number, and how to reduce the fractionpart. use this problem as your example: the two fractions are 5/8 & 7/8

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Factor the polynomial. b^2 + 4b + 4