This is your perfect answer
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Answer:
1st answer: 52 serves
2nd answer: $8.40
Step-by-step explanation:
1st: 80 times 65 equals 5,200 divided by 100 equals 52
2nd: 42 times 0.20 equals 8.4 or 8.40
x equals negative 9 i think
Pythagoras, cool.
30^2 is 900
15^2 is 225
26^2 is 676
676+225 isn't 900 so it isn't A.
10^2=100
26^2=676
24^2=576
100+576=676 so B is a right angled triangle.
Hope this helps :)