Monica purchased adult and youth tickets for the fair. she bought x adult tickets for $28 each and y youth tickets for $15. write an expression that can be used to show the total cost, c, of all tickets.
a) c = (28 + 15)x
b) c = 28x + 15y
c)c = 28y + 15x

C = 28x + 15y

Step-by-step explanation:

$28 per adult (x)

$15 per child (y

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.