7. Solve the equations by thinking logically. a. -10y = 100
b. 4a=-36
c. W +3=-6
y=
10
a
W=
d.
b
= 15
-5
--55
5
e.
-64
= 8
x
f.
Z
11
b=
X
2

What is the value of 1/3× + 7x, when x =5

Me. drysdale earned 906.25 in interest in one year on money that he had deposited in his local bank if the bank paid an interest rate of 6.25% how much money did mr. drysdale deposit

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?