How do you get the answer for k + 3 = 7

What is the perimeter of square abcd? units units 28 units 37 units

Describe what moves you could use to create the transformation of the original image shown at right

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?