1. let f(x)=-5x-4 and g(x)=6x-7. find f(x)+g(x)
a. -11x+3
b. x+3
c. -11x-11
d. x-11

2. let f(x)=3x+2 and g(x)=6x-7. find f(x)-g(x)
a. 3x-9
b. -3x+9
c. -3x-5
d. 2x-1

3. let f(x)=-5+3 and g(x)=6x-2. find f*g and its domain
a. -30x^2+28x-6; all real numbers except x=1/3
b. -15x^2-8x-12; all real numbers except x=3/5
c. -30x^2+28x-6; all real numbers
d. -15x^2-8x-12; all real numbers

Matilda and kathryn went on different road trips over spring break.the equation below represents the number of miles matilda drove in x hours.y = 60xthe table below shows the number of miles kathryn drove in x hours.time(in hours)distance(in miles)114228342456who drove at a greater speed? a. matilda drove at a greater speed.b. matilda and kathryn drove at the same speed.c. kathryn drove at a greater speed.d.there is not enough information to determine their speeds

Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in