Best Buy's warehouse ships televisions and Blu-Ray players in
certain combinations to their stores throughout the country. The
weight of 3 televisions and 5 Blu-Ray players is 62.5 pounds, and the
weight of 3 televisions and 2 Blu-Ray players is 52 pounds.
• Create a system of equations that represents this situation.
• Solve the system to find how much each television and Blu-Ray
player weighs.

what? that isnt a question

step-by-step explanation:

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -