Travis needs to mail 12 letters and 25 postcards. A letter needs a 79-cent stamp and a postcard needs a 30-cent stamp. How much money will Travis spend for postage?

$16.98

Step-by-step explanation:

First you have to multiply the amount of letters and postcards by the amount each stamps costs:

12x0.79=9.48

25x0.30=7.50

Then add those values together to get the total:

9.48+7.50=16.98

$16.98 is your answer

Hope this helps!

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

b. 2 and 4

step-by-step explanation: