What is the value of (a + b) in the system of equations below?

8(a + b) + 3z = −9
a + b + z = 2

select one:
a. -5
b. -4
c. -3
d. -2

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0