Mr. len is a teacher whose salary is $22,570 for this school year, which is 185 days. in mr. lens school district, substitute teachers are paid $80 per day. if mr. len takes a day off without pay and a substitute teacher is paid to teach his classes how much less does the school district pay in salary by paying a substitute teacher instead of paying mr. len for that day?

What are the sotions to the quadratic equation 9x^2=4

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Question 3(multiple choice worth 1 points) use the arc length formula and the given information to find r. s = 16 cm, θ = 48°; r = ? sixty divided by pi cm thirty divided by pi cm one third cm one hundred twenty divided by pi cm