A typewriter costing $75.00 marked up 40% on cost M = 40 and S = 105
Let x = the next score
If (81 + 89 + 90 + 83 + 77 + x) ÷ 6 = 82
⇒ 420 + x = (82 × 6)
⇒ x = 492 - 420
x = 72
Thus to get an 82 average he need to get 72 on his next test.
Answer:
42 i think
Step-by-step explanation:
The most complex sentence is c.
