Answer:
he gained 900 dollars.
Step-by-step explanation:
A -120 difference will be seen in the temperature within a 7 hour period
<u>Equation</u>
<em>-</em>30 x 7
<em>Multiplying two of different signs ( - + , + - ) will always be negative.</em>
<em>Multiplying two of the same sign ( - - , + + ) will always be positive.</em>
4 pieces of pipe,
4/3 yd long
25/6 yd long
5 pieces same length.
(25/6)/5 = 5/6 yd is the length of each piece of woods.
Hello
by identity : a²-b² = (a-b)(a+b)
m²-25 = m²-5² (m-5)(m+5)
