Use the distributive property to write the expression without parentheses. Then simplify if possible.7(3z + 6) - 4
A. 21z + 2
B. 21z + 14
C. 21z + 38
D. 10z + 9
Answer: C
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Use the unpaid balance method to find the finance charge on the credit card account. The last month's balance and any other transactions are given.Month: May (31 days)Previous month's balance: $960Interest rate: 17%
A. $25.25 B. $695.60 C. $9.57 D. $9.85
Express the amount as a positive or negative integer.The sales at Andrea's Formal Wear Shop this week were $1078 more than the sales last week.
A. 1078 B. -1078
Evaluate the following improper integral whenever it is convergent.
?
Fill in the blank(s) with the appropriate word(s).
Determine the most appropriate metric unit to go in the blank. Choose from km, m, cm, mm, L, mL, kg, g, and mg.She took 540 
of vitamin C.
A. kg B. mm C. g D. mg E. L