Answer:15
Step-by-step explanation:he has 3 packs of model cars. 15 is in each pack if he gave away four he would have 11 left.
42 hundredths as a decimal is 0.42
Answer:
(2). <em>b - (a + c)i </em>
Step-by-step explanation:
= [( i )²]³ × i = ( - 1)³ i = - i
=
× i = i
a(- i ) + b( 1 ) - c( i ) = - ai + b - ci = <em>b - (a + c)i</em>
Answer: 3
Step-by-step explanation:
4x-2=10
first you plus 2
10+2=12
4x=12
x=3