Cedric completed the square for the quadratic expression 5x2−40x+15 in order to determine the minimum value of the expression, as shown. Step 1: 5(x2−8x+3)
Step 2: 5(x2−8x+16−16+3)
Step 3: 5((x+4)2−16+3)
Step 4: 5((x+4)2−13)
Step 5: 5(x+4)2−65
What mistake, if any, did Cedric make?

a. He did not make a mistake.
b. In Step 1, he incorrectly factored out 5. He should have written 5(x2−8x−3).
c. In Step 5, he incorrectly distributed 5 from the parentheses. He should have written 5(x+4)2−13.
c. In Step 3, he incorrectly wrote the square as (x+4)2. He should have written x−42.
d. In Step 2, he incorrectly added 16 and −16. He should have written 5(x2−8x+64−64+3).

Students at a high school were asked about their favorite outdoor activity. the results are shown in the two-way frequency table below. fishing camping canoeing skiing total boys 36 44 13 25 118 girls 34 37 22 20 113 total 70 81 35 45 231 select all the statements that are true based on the given table. more girls chose camping as their favorite outdoor activity than boys. more girls chose canoeing as their favorite outdoor activity than those who chose skiing. more boys chose skiing as their favorite outdoor activity than girls. there were more boys surveyed than girls. twice as many students chose canoeing as their favorite outdoor activity than those who chose fishing. more students chose camping as their favorite outdoor activity than the combined number of students who chose canoeing or skiing.

72 the length of a side of a triangle is 36. a line parallel to that side divides the triangle into two parts of equal area. find the length of the segment determined by the points of intersection between the line and the other two sides of the triangle.

Travis and paula went to lunch.travis ordered a sandwich for $7.50 and paula ordered a burger for $5.25.after lunch,they left a 15% tip for the waiter.how many money did they spend altogether?