Petra is making to sell at a craft fair. The hardware for each necklace costs $3.75, and each bead costs $0.50. The number of beads Petra needs depends on the design she chooses. Which expression gives the total cost to make 30 necklaces with b beads ?

If 3x+8=3x+8 is it one solution or no solution

Which of the following contains a variable?

He graph of f(x) = |x| is stretched by a factor of 0.3 and translated down 4 units. which statement about the domain and range of each function is correct? the range of the transformed function and the parent function are both all real numbers greater than or equal to 4. the domain of the transformed function is all real numbers and is, therefore, different from that of the parent function. the range of the transformed function is all real numbers greater than or equal to 0 and is, therefore, different from that of the parent function. the domain of the transformed function and the parent function are both all real numbers.