10. Complementary angles must be acute.
11. Supplementary angles must be obtuse.
12. Two acute angles can be supplementary.
13. A pair of vertical angles can be complementary.
14. A pair of vertical angles can be supplementary.
15. Vertical angles must have the same measure.
16. Complementary angles can be adjacent.
17. Supplementary angles can be adjacent.
18. Any two right angles are supplementary.
19. Two acute angles are always complementary.
20. An acute and an obtuse angle are always
supplementary.
21. The intersection of two rays creates two pairs of vertical angles and four pairs of supplementary angl

Can u hlp pl plx tell me which one is true and false

if gloria has "carry over" minutes, (that is, any minutes paid for but not used in a month can be applied to her payment for minutes in the next month,) her total usage for the three months is: total minutes = 320 + 243 + 489 = 1052 minutes number of 200 minute blocks = 1052/200 = 5 r52 (that is 5 with a remainder of 52) rounding up the number of 200 minute blocks gives her usage for the three months as 6 blocks. the cost for six blocks is 6 x $25 = $150 she also has 200 - 52 or 148 carry over minutes if gloria pays each month and unused minutes are lost, applying the rounding up procedure to each month gives: first month usage of 320 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 second month usage of 243 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 third month usage of 489 minutes rounds up to 3 blocks of 200 minutes for a payment of 3 x $25 = $75 total payments for the three months are $50 + $50 + $75 = $175 get the plan with carry over minutes!