Answer:
68
Step-by-step explanation:
I can't read that paper, so I'm assuming that you mean the angle measure of 68 degrees. Strange question.
Answer:
answer below
Step-by-step explanation:
They want you to put the first fraction in mixed numbers.
21/5 divided by 4/5
When dividing fractions flip the second fraction
21/5 times 5/4
Then multiply across
105/20 = 21/4 or 5.25
Answer:
42592
Step-by-step explanation:
3.99 + 0.75b = 12.24
0.75b = 12.24 - 3.99
0.75b = 8.25
b = 8.25 / 0.75
b = 11.....there were 11 bulbs
Answer:

Step-by-step explanation:
Standard equation of a line is y = mx + b, where m is the slope.
Given line y = - 3x + 78, slope, m₁ = -3
<em><u>To find the line perpendicular to the given line.</u></em>
The lines are perpendicular to each other if the product of their slopes = - 1
That is,

So the slope of new line is

