Answer:
366 square inches
Step-by-step explanation:
Surface Area Formula:
A= 2( w*l + h*l + h*w)
So you substitute the numbers:
A= 2(3*9 + 13*9 + 13*3)
A= 2( 27+ 117 + 39)
A= 54+234+78
A= 366 square inches
There you go :)
A
on the left of the equation, (6^4)^-5 = 6^-20
the right side you add the exponents so it would be (-7-3) =-10
so it would be 6^-10, which is greater than 6^-20
Different costs:
70+25+30+60 = 185
70+70+30+50 = 220
60+70+25+50 = 205
Least cost is $185
1. B-uford
2. C-umming
3. D-acula
4. $185
