Harry buys a TV priced at £1200 plus 20% VAT. He pays £300 deposit and the balance in ten equal monthly payments. Calculate each monthly payment.

114 monthly payment

Step-by-step explanation:

1200 + 20%= 1440 (20% of 1200 equals 240)

the VAT has to be added to the purchase price.

1440 is the total price he had to pay for the tv.

he pays 300 down. 1440-300 = 1140

1140 is the remaining balance he had to pay over the next 10 month.

1140 ÷ 10 = 114

divide 1140 by 10 payments and you receive you monthly payment amount. 114

22

step-by-step explanation:

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