3500:4200 reduce to 35:42 see if you can reduce anymore. you can to 5:6
#2- yes because both can be divided or multiplied for example 3 and 9, u can multiply 3x3 to get 9 since the dilation is 3 then yes it is similar triangles
Multiplying a negative number and another negative number makes the product positive.
So (-2.1)*(-1.4) = 2.94
