The answer I got was 280 calories. I got that by dividing 200 by 50. Which I then got 4. Then, I multiplied 4 by 70 yo get 280 calories.
The factors of rty are
1, r, t, y,
rt, ry, ty, rty
One tick behind one is 3/4, 1/8 is basically half of 1/4, so find 1/4 and find 1/8, 0 is sort of obvious but then not obvious. three ticks behind 3/4. 2 2/3, count UP from 1 1/4 to find 2 2/3. I really hope I helped! :)