Solve using cross pruduct: 7/4 = 21/x

Gilda drove 650miles at an average speed of 50 miles per hour. how many miles per hour faster would she have had to drive in order for the trip to have 1 hour less?

At Mary's bakery chocolate chip cookies make up 45% of the total cookies Oatmeal Raisin cookies 25% of the total cookies there are 330 cookies of the other type how many cookies are there altogether

What is the earth made of

The table shows a student's proof of the quotient rule for logarithms. Let M = bx and N = by for some real numbers x and y.

Danielle earns $36.80 for 4 hours of yard work. MacKenzie earns $50.40 for 6 hours of yard work. Who earns more per hour? How much more?

What number increased by one half is equal to negative three eighths?

Lauren has already jarred 17 liter of jam and will jar an additional 1 liter of jam every day. How much jam did Lauren jar if she spent 8 days making jam

A cone has a diameter of 6 centimeters and a height that is 3 times the diameter. Using 3.14 for pi, which of the following can be used to calculate the volume of the cone? one over three (3.14) (3cm) 2 (18cm) one over three (3.

The stadium owner is considering an offer from Reliable Tools to change the name to Reliable Stadium. The company is offering to pay $750,000 per year.

Let / / (E=t { x|x^{2}-3x=-2 }//), / / (H=t { 1,2 }//). Then a. NOU193131382 / / (E//cap E=O//) b. / / (H//cup E = t { 1,3 }//) c. / / (H//cup E=O//) d. E=H