Jessica is planning a trip to South Africa. The following table shows some of her planned expenses for this trip, and whether these
expenses are in US dollars ($) or South African rands (R).
Currency
Item
Guide book
Walking shoes
Passport
Car rental
R
Cost
216.41
702.33
71.75
996.78
3,741.85
138.10
Plane ticket
Hotel reservation
$
If the exchange rate of US dollars to South African rands is 1:7.4094, what is the current total of Jessica's budget, in US dollars?
Round all currencies to two decimal places.
a $763.54
b. $791.86
c. $973.39
d. $1,001.71
Save and Exit

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

bn,mn,n.vn.

step-by-step explanation:

6 meters

step-by-step explanation:

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.