Samantha made 12 necklaces with 240 glass beads. angelina made 11 necklaces with 231 glass beads. select all statements that are true about these ratios. answer choices angelina uses 21 glass beads in every necklace. samantha uses 1 glass bead for every 20 necklaces. angelina's necklaces have a unit rate of 20 glass beads per necklace. samantha's necklaces have a unit rate of 20 glass beads per necklace. samantha's necklaces have fewer glass beads than angelina's necklaces do.

the answer would be 15!

Step-by-step explanation: because 135 divided by 9 is 15!

Hope this helped! (:

practice. practice. practice.

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204