21=q/9

q = 30

q = 121

q = 12

q = 189

Tangerine trees yield 50 pounds of fruit per acre and grapefruit trees yield 75 pounds of fruit per acre. John's orchard produced a maximum total of 1,500 pounds of fruit.

The sum of two numbers is 67. if one of the numbers is p, express the other number in terms of p

Mike is 7.5 miles ahead of julia running at 5.5 miles per hour and julia is running at the speed of 6 miles per hour. How long does it take julia to catch mike. The answer is 15 hours but I am unsure as to why, can someone explain?

The incorrect work of a student to solve an equation 2 (y + 8) = 4y is shown below: Step 1: 2 (y + 8) = 4y Step 2: 2y + 10 = 4y Step 3: 2y = 10 Step 4: y = 5 Which of the following explains how to correct Step 2 and shows the correct value of y?

A package in the shape of a rectangular box can be mailed by the us postal service if the sum of its length and girth (the perimeter of a cross-section perpendicular to the length) is at most 108 in.

Suppose it takes you 12 min to walk from home to school at a rate of 260 ft/min. Your friend lives closer to school than you do. Which inequality represents the distance d (in feet) that your friend lives from school?

If a line crosses the y-axis at (0, - 4) and has a slope of - 2, what is the equation of the line

Mrs Ross class has 24 students. 2/3 of her students have brown hair. The rest have blonde hair. How many students have brown hair? How many have blonde hair?

Alexis is going on a trip and needs to save money she corrently has 800 houdred dollars in her bank account and she plans to save 50 dollars each paycheck until has 2050

What is 12 (6+9m) simplified