Rectangle CDEF has vertices C(−10, 10), D(5, 10), E(5, 5), and F(−10, 5). It is dilated by a scale factor of 15 centered at (0, 0) to produce rectangle C′D′E′F′. What is the perimeter in units of rectangle C′D′E′F′?

Divide. –40 ÷ –5 a –8 b 200 c -200 d 8

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.

The westins and the shermans live in the same city and pay the same sales tax rate, and both families made $14,000 in taxable purchases last year. if the westins made $86,000 and the shermans made $33,000 last year, is the sales tax in their city an example of a regressive tax? yes, because the westins and the shermans both paid the same sales tax rate. b. no, because the shermans paid a higher percentage of their income in sales tax than the westins did. c. no, because the westins and the shermans both paid the same sales tax rate. d. yes, because the shermans paid a higher percentage of their income in sales tax than the westins did.