Write and graph an equation in two variables that shows  the relationship between the time t and the distance d traveled. the car travels 660 miles in 10 seconds what is d? d=

Well wouldnt d just be 660 miles?
This would be a line graph with the initial point (0,0) and a point (660,10). Using rise/run, the slope of the line is 660/10 which is 66.

(there are two photo attachments. if you are viewing on the mobile app, view it on the website to see both photos.)

for these questions, i assumed the figure had some symmetric properties.

for the perimeter, see figure 1 attached.
perimeter is around 53.65 cm.



for the difference of the shaded area of a and the sum of the shaded areas of b and c, refer to figure 2 attached.

we first took one side of the square, rotated it until it touched the intersection as shown. this formed both a triangle and a sector of a circle.

we used formulas for those, and then, since it is symmetric (if you do the same thing, you'd get the same result), we found that 

   

then we determined new regions d and e so that we can use subtraction to determine the area of a.

   

the sum of the shades ares of b and c

   

difference between shaded area of a and b+c:

   

22.72 cm²

(i think actual answer without using 3.14 for pi is around 22.796 cm²)