Answer:
13) C (a, a) Y (a, 0)
14) B (0, b) P (a, 0)
Step-by-step explanation:
13) Y lies on x axis so it is Y(a,0)
ZY = YC = a
so for C coordinates are (ZY,YC) = (a, a)
14) B lies on y axis so it is B(0, b)
BK = BP = 
= distance between two points
so P is (a, 0) as it is same distance and on positive side of x axis
-5+7=2, and -2+7=5 so now it would be 2<5! :-)
Answer:
53/100
Step-by-step explanation:
C = # of carpenter hrs , b = # of blacksmith hrs
c + b = 30...c = 30 - b
20c + 25b = 690
20(30 - b) + 25b = 690
600 - 20b + 25b = 690
-20b + 25b = 690 - 600
5b = 90
b = 90/5
b = 18 <== hrs worked as blacksmith
c + b = 30
c + 18 = 30
c = 30 - 18
c = 12 <== hrs worked as carpenter
No 45 is a multiple for 5
