Answer: Left over yard after the two projects is 
Step-by-step explanation:
Since we have given that
Number of yard of fabric for one project is given by

Number of yard of fabric for second project is given by

Total number of yards of first and second project is given by

Number of original of fabric Tina have left after the two project is given by

Hence, Left over yard after the two projects is 
Answer:
27% and 37%
Step-by-step explanation:
Percentage of students who oppose the year-round school = 68%
Percentage of students who support the year-round school = 32%
Margin of error = ± 5%
We have to set up the absolute valued equation to find the range(least and greatest) percentages of students who could be in favor of year-round school.
Since, the percentage of students who support the year-round school is 32% and the margin of error is 5%, this means, the difference between 32% and the least and greatest possible percentages is 5%. It can be either +5% or -5%
This thing can be expressed as absolute valued equation as:
| x - 32 | = 5
Here x represents the least and greatest percentages.
Expanding the equation, we can write:
x - 32 = -5 or x - 32 = 5
x = -5 + 32 or x = 5 + 32
x = 27% x= 37%
This means the least percentage of students who be in favor is 27% and the greatest percentage of students is 37%.
Ans: 5*-3=-15
Step-by-step explanation:
The product of a positive and negative integer is negative.So, the product of 5 and -3 is -15
To find out how much money Samantha earned this week, we just need to multiply the rate of money she earns per hour by the amount of hours she worked.
9.50 * 40.5 = 384.75
Samantha earned $384.75 this week.
Hope that helped! =)