Answer:
a = -10
Step-by-step explanation:
-0.4a + 3 = 7
subtract 3 from each side
-0.4a + 3-3 = 7-3
-.4a = 4
Divide each side by -.4
-.4a/ -.4 = 4/-.4
a = - 10
is 750.000 is your answer.
Answer:
17 units
Step-by-step explanation:
split the shape into several little ones that you have formulas for :)
Answer: A. 1993
Step-by-step explanation: A P E X
Answer:
b/4+9
Step-by-step explanation: