3b) Determine the value of the unknown. 7:12 = 21:
Your answer
This is a required arection

Can you me find the missing length. i attached an image.

Landon wrote that 3−2.6=4. which statement about his answer is true?

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints