Fiona wants to estimate the product (8.7)(3.0) which expression shows each factor rounded to the nearest whole number?

Cody worked 42.5 hours per week in july. this is 12.25 hours more per week than he worked in june.how many hours did cody work per week in june?

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

What is the scale factor of this dilation? a) 1/2 b) 1/3 c) 2 d) 3