Jim bought an $89 calculator discounted 25%. what did he pay for the calculator?

a. $66.75
b. $74.50
c. $72.50
d. $75.50

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

A+b= 17, ab=70, find the value of |a-b|

How many significant figures are there in the number 10.76?