Clarence earns a 10% commission on sales plus a $200 weekly salary.
In one week, his sales totaled $2100.
What was his total pay that week?

$410

Step-by-step explanation:

Step 1

We calculate the amount of commission of sales

Commission rate = 10%

Total sales = $2100

Hence,

= 10% × $2100

= 10/100 × $2100

= $210

Step 2

The total pay of Clarence for that week

= Commission + Weekly salary

Commission = $210

Weekly salary = $200

Hence,

= $210 + $200

= $410

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

99

step-by-step explanation: