An arch in the form of a semicircle was 100 over a 40-inch-wide doorway. Find the
length of the arch to the nearest inch.
360"
D. 48 in.
E. None correct
C. 63 in.
A. 120 in.
B. 100 in.

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?