Asequence of transformations maps ∆abc onto ∆a″b″c″. the type of transformation that maps ∆abc onto ∆a′b′c′ is
when ∆a′b′c′ is reflected across the line x = -2 to form ∆a″b″c″, vertex (note: enter your response using apostrophes instead of
of ∆a″b″c″ will have the same coordinates as b′.

Reflection

(I don't know the second blank, sorry!)

Step-by-step explanation:

The triangle is being reflected over the x-axis.

the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: