7 + 2 = 9 and 9/12 + 11/12 = 20/12 = 1 8/12 = 1 2/3
9 + 1 2/3 = 10 2/3
Step-by-step explanation:
A compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom. ... Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds. They contain only one type of molecule.
Answer:
51 hours
Step-by-step explanation:
$15 x 40 = $600
$15 x 1.50 = $22.5
$22.5 x 11 = $247.5
$600 + $247.5 = $847.5
40 + 11 = 51 hours
Uhhhhhhhhhh i don’t really know