Which biconditional is not a good definition?
a. an angle is a right angle if and only if its measure is 90°
b. an angle is acute if and only if its measure is less than 90°
c. two angles are congruent if and only if its measure are the same.
d. an angle is obtuse if and only if its measure is greater than 180°

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.

22. catie is starting a babysitting business. she spent $26 to make signs to advertise. she charges an initial fee of $5 and then $3 for each hour of service. write and solve an inequality to find the number of hours she will have to babysit to make a profit. interpret the solution.!