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!

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

30.5*10=350$

you have to multiply the number without the decimal point then add it later but if its tenn u must move the place value of the decimal point 1 to the right.