Tina makes 480 sandwiches.
She only makes tuna sandwiches, beef sandwiches, ham sandwiches and
cheese sandwiches.
of the sandwiches are tuna. 35% of the sandwiches are beef.
The ratio of the number of ham sandwiches to the
number of cheese sandwiches is 5:6
Work out the number of ham sandwiches that Tina makes.

the workers who do no drive has no reasonable reason to buy gasoline due to they don't have anything to use it for

idk

step-by-step explanation:

its adding 5.5 each time

step-by-step explanation:

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 -