Answer:
-2z+8
Step-by-step explanation:

125 = 6 dimes = 60 and 13 nickles = 65
60+65= 125
Hope i was the brainliest asnwer.
Answer:
109000
Step-by-step explanation:

We know that

because of the Pythagorean trig identity

.
Answer:
Step-by-step explanation:
4x+2y = -24 -------------(i)
<u> -4x+y = 12 -</u>------------(ii)
add (i) &(ii) 3y = -12
y = -12/3
y = -4
Put y = (-4) in (i)
4x + 2*(-4) = -24
4x - 8 = -24
4x = -24 + 8
4x = -16
x = -16/4
x = -4