1207838929299236636236+2892
Answer:
y=24
Step-by-step explanation:
4y+7+3y+5=180
7y=168
y=24
Answer: 58.42
Formula: Multiply the length value by 2.54
23×2.54
=58.42
12 Inches = 30.48 Centimetres
Answer:

mass = 3.645 g
volume = 9×9×9
= 729 cm³
density = 3.645/729
= 0.005 gcm^-3
Step-by-step explanation:
the volume is 729 cm³ cause the given height is 9cm and it is a cube. cube has equal sides so their lengths are the same.
volume = length × height × width