Hello,
Let assume x the number of half-dollars3x is the number of quarters.
The coins total $13.75.

11 is the number of half-dollars
33 is the number of quarters.
S, r, c and m
hope this helps :)
Answer:
130°
Step-by-step explanation:
∠BXF = ∠BXA + ∠AXF = 90° +40°= 130°
see ∠AXF =∠CXD opposite angles
∠CXD = 90° given
∠BXA = 40° given
Answer:
B. 550
Step-by-step explanation:
550 is the smallest number that becomes 600 when rounded to the nearest hundred
2x+ 2y= 2; -4x+4y= 12
X + y= 1 ; -x+ y= 3 ==> y= 3+ x
X+ (3+x) =1
2x = 1-3= -2 ==> x= -1
Y= 2