In the diagram, the measures of <1 and <4 are 105°. The measures of <5 and <8 are 115°. Are lines c and d parallel?
C
1/2
34
5/6
8
O A. No, because 21 and 25 are not supplementary.
Ο Ο Ο
B. No, because 21 and 25 are not congruent.
O C. Yes, because 21 and 24 are congruent.
O D. Yes, because 25 and 28 are congruent.

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.

Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.