Mary bought 45.2 pounds of paper. she paid $2.25 per pound. how much did mary spend on paper? a. $101.70 b. $101.17 c. $90 d. $45.25

1.true 2.false? ? i think. .

step-by-step explanation:

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft