A hardware store is offering 20 light bulbs at a total cost of $71.02, which includes a 6% sales tax. To prepare for a lab experiment, Brad is making a solution that uses two types of concentrations: 75 mL of 50% salt and 125 mL of 10% salt.

What is the salt concentration of the mixed solution?
Before taxes, how much did a single light bulb cost?

Question 101 points)which equation in slope-intercept form represents the line that passes through (5, 1) and(-4,7)

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

Which is the graph of the piecewise function f(x)? f(x)=[tex]f(x) = \left \{ {{-x+1, x\leq 0 } \atop {x+1, x\ \textgreater \ 0}} \right.[/tex]