Answer:
Step-by-step explanation:
f(x) is like y in a linear equation. There is one major difference. F(x) tells you what to substitute on the right every time you see an x.
f(a) = -3a + 7
f(b) = -3b + 7
For this question a and b have values. Now work with the right side only. This is the quickest way to get the answer, but it is only marginally correct.
f(a) = -3(-8) + 7 = 24 + 7 = 31
f(b) = -3(7) + 7 = -21 + 7 = - 14
f(a) + f(b) = 31 - 14 = 17
f(a) - f(b) = 31 - (-14) = 31 + 14 = 45
32.6 0.61
+3.54 x 0.45
--------- ----------
36.14 305
+ 2440
Answer:
B. 66
Step-by-step explanation:
73+25 = 98
Z = 98-32
Z = 66
To find the tax rate (in this case, 8%), you must multiply the base cost ($128) by the percentage (or, divide the cost by 100 and multiply that by the percentage).
$128÷100=$1.28
$1.28×8%=$10.24
So, the amount of tax that is charged on the table is exactly $10.24.
Hope this helps!
