Answer:
D
Step-by-step explanation:
17 does not equal -10 therefore it is no solution
Answer is 19
Step-by-step explanation:
(55 + 150 + 325 + 510 + 780 + 990) - (40 + 150 + 300 + 500 + 800 + 1000) = 2810 - 1790 = 20
Answer:
7.
Step-by-step explanation:
3(100 - 2x) = 36x + 6
300 - 6x = 36x + 6
50 - x = 6x + 1
7x = 49
x = 7.
Answer:
Step-by-step explanation: