Answer:
C (-3,5)
Step-by-step explanation:
hope this helps!
You need to first calculate the amount of lost money, which is 86-60.2=25.8 To find the discount, you need to put this over the initial price, or 86. This equals 0.3, which is 30 percent.
Answer:
B
Step-by-step explanation:
start by multiplying the 6a to each number in the other set of parenthesis.
after doing so, you end up with the numbers:
and 
now multiply the one to each number in the other parenthesis. you get this:
and
.
then set it all next to each other: 
+

then combine like terms (-54a and 2a) you get: 
so that is how you get B for the answer
It is b
Hope That this helps
Si a, b y r son números reales (y si a y b no son iguales a 0), ax+by = r se denomina ecuación lineal en dos variables. (Las “dos variables” son la x y la y.) Los números a y b se denominan los coeficientes de la ecuación ax+by = r. El número r se denomina constante del eje de ecuación + por = r.