Rectangle efgh is shown below with line ij passing through the center: rectangle efgh is shown with a line ij passing vertically through the center of the rectangle. if rectangle efgh is dilated by a scale factor of six about the center of the rectangle to create rectangle e'f'g'h', dilated line i'j' will remain unchanged be parallel to line ij shift six units up be perpendicular to line ij

remain unchanged

Step-by-step explanation:

Dilating the rectangle about the center will not change its relative position to the line.  All it will do is change the lengths of the sides.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!