6. the 4-inch radius pizza for $3 or the 8-inch radius pizza for $14.

The 3 dollar pizza is the better deal.

Step-by-step explanation:

I take you mean which is the better deal.

The area of the 4 inch pizza is pi*r^2 = 3.14 * 4^2 = 50.24 square inches.

The area of the 8 inch pizza is pi*r^2 = 3.14 * 64 = 200.96

A square inch of the 4 inch pizza is 3/50.24 = 0.05952 cents

A square inch of the 8 inch pizza is 14/200.96 = 0.0697 cents.

Though this doesn't happen in real life, the smaller pizza is the better buy.

$27.5

step-by-step explanation:

$110.00 divided by 4

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752