90 girls and boys have planned for an education tour . they are in the ratio of 3 girls 6 to boys . how many girls are there

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation

Afootball is throw by a quarterback to a receiver