Answer:
$56.33
Step-by-step explanation:
30% off of $69.98 is ($49.99) then add 15% which makes it $56.33 .!
x+2(x+1)=35
x+2x+2=35
3x=35-2=33
x=33/3=11
smaller number=11
larger number=11+1=12
Triangular prism: 2 bases and 5 faces
Pentagonal prism: 2 bases and 7 faces
c is -7
-7 + 10 = 3
:D