A. Yes; there are no y-values that have more than one x-value. B. Yes; the graph passes the vertical line test.
C. No; there are y-values that have more than one x-value.
D. No; the graph fails the vertical line test.

$18 was the price of the t-shirt

step-by-step explanation:

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.