Answer:
x = 40°
Step-by-step explanation:
Given that ∠SRT ≅ ∠STR
Then ∠STR = 20
∠STR and ∠STU are what you call supplementary angles. This means that the sum of their measurements is equal to 180° because they form a straight line.
So if:
∠STR + ∠STU = 180°
m∠STU = 4x
m∠STR = 20
Then:
4x + 20° = 180°
Now we solve for x:

x = 40°
Answer:
28
Step-by-step explanation:
Take the weight of the bowl out of the rice
I do not see any illustrations, but repeated subtraction is the exact same as division.
I hope this answer was useful, and as always, I am joyous to assist anyone at any time.
I not that good with math but I would say C.