Answer:
127
Step-by-step explanation:
3 x 7 + 5 - 2 - 3 + y
y = 106
3x7 = 21
21 + 5 = 26
26 - 2 = 24
24 - 3 = 21
21 + 106 = 127
Answer:

Step-by-step explanation:
If two rectangles are similar, then corresponding sides are in proportion.
Therefore we have the equation:

cross multiply

divide both sides by 54

Answer:

Step-by-step explanation:
if the given figure is triangle, then the required length can be calculated:

additional info: sin45°=1/√2.
Answer: 21/56
Step-by-step explanation:
You multiply the numerators together, 3•7 equalling 21.
Then you multiply the denominators together, 7•8 equalling 56.