Answer:
$69
Step-by-step explanation:
Given


Required
Determine the cash before purchase
To get the her amount before the purchase, we simply add both given parameters together.
This is done as follows;

Substitute 0 for Amount Left and 60 for Purchase


<em>Hence, she had $69 before the purchase</em>
The simplified expression of
is 
The expression is given as:

Expand the expression

Factor out 2

Combine the radicals

Expand the expression

Evaluate the roots

Expand

Hence, the simplified expression of
is 
Read more about simplified expressions at:
brainly.com/question/8008182
Answer: 3x+8y=100
x+y=20
x=12
y=8
Step-by-step explanation: x would represent the number of multiple choice questions and y would represent the number of short response questions. the multiple choice questions were 3 points meaning that you need to find x. the short answer response questions were 8 points meaning you need to find y. altogether you need to get 100 points. for the second equation you have 20 questions that need to be both multiple choice and short response. therefore the second equation would be x+y=20. if you solved this, the answer would be that x equals 12 and y equals 8. hope this helped! :))
Answer:

Step-by-step explanation:

Let x equal a number
3x + 5 = 26
3x = 21
x = 7
the number is 7!