Remember that an exponent means repeated multiplication.
The exponent of 4 means you have four 
's mutiplied together:
And then each exponent of 2 inside means you have two 
's multiplied inside each set of parentheses.:
There are 8 b's there when you expand this out.
Answer:
so 25% of 63
63x25:100
15,75=
63+15.75=
78.75=
79 appx
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
If two chords intersect externally, then the product of the length of the chord and the length of the part outside the circle is a constant.
Thus from the figure,
we can deduce that:
8×3=6×x
collecting the like terms together we get:
24=6x
x=4
Answer: You could only buy 1 pound of raisins and 1 pound of walnuts
Step-by-step explanation:
$8=1 pound of walnuts
$15-$8=$7
$4=1 pound of raisins
$7-$4=$3
$3 is not enough to buy a pound of raisins since it’s one dollar off but it is also not enough to buy a pound of walnuts because it’s off by $5
Answer:
2.66 days
Step-by-step explanation:
We know that a day has 24 hours, so if Roger sleeps 3/8 of a day that means that he sleeps 3/8 • 24 which equals to 9 hours.
Now we want to know how many days it takes Roger to sleep an equivalent of a day if he sleeps 9 hours a day. So:
24 h / 9 h = 2.66 days
Of course we can do it in an easier way, in fractions:
1 : 3/8 = 8/3
8/3 = 2.66 days
