How would u use a number to determine the sum of two negative integers

This question consists of 2 parts, a and b. marco got a quotient of 70 when he divided 49 by 0.07. part a what is the correct answer to this problem? part b what mistake did marco make? you!

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

Which statements are true about additional information for proving that the triangles are congruent check all that apply