(01.02 mc)betty had $70. she bought a necklace for $9 and a ring for $7. which expression correctly shows the total money betty has left? a $70 − (−$9) + (−$7) b $70 + (−$9) + (−$7) c $70 − (−$9) − (−$7) d $70 + (−$9) − (−$7) answer choices a b c d

Which statement justifies why angle ebc measures 90?

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

Given: x - 4x > 0, then the solution set in interval notation is: (-2, 0) true o false