Which is true about both pappus‘s theorem and desargues’ theorem?

each theorem applies to spherical geometry.

each theorem involves a dilation.

each conclusion states that three points are collinear.

each hypothesis is based on triangles.

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.

The salesperson earns a 5% commission on the first $5,000 she has in sales. the salesperson earns a 7.5% commission on the amount of her sales that are greater than $5,000. this month the sales person had $8,000 in sales. what amount of commission, in dollars, did she earn?