Answer:
810
Step-by-step explanation:
450 × 1.80 = 810
The 1 represents how there is no markdown and the .80 is the 80% being marked up.
I think there is a more specific equation for this than the one I showed, but this was my way of solving these questions without giving myself a headache
Answer:
20.9 cm^3
Step-by-step explanation:
A x b x b x 4 x b
The answer is: 4ab^3
(the above answer is 4ab cubed)
7/8 you have to make 1/4 into 2/8 and 2/8+5/8=7/8
