The ratio of girls to the total number of students in class is 4 to 7 how many students are girls if the class has 20 students in all? 4/7=/21

a.) 16

b.) 18

c.) 14

d.) 12

A study of the annual population of gray squirrels in a Texas state park shows the population, S (t), can be represented by the function S (t) = 273 (1.073) t, where the t represents the number of years since the study started.

Solve for the indicated variable in the literal equation: 2/5 (z+10) = y for z

What's the common multiple of three and eight

There is a sting of red lights strung around a window. The red lights blink ever 3 seconds and the blue lights blink every 5 seconds. How many times will they blink at the same time?

The range of the secant function is?

Molly says that 4/8 is always the same 1/2. Andrew says that 4/8 and 1/2 are equivalent fractions, but they could be different amounts.

A pole that is 3.1 m tall casts a shadow that is 1.18 m long. At the same time, a nearby tower casts a shadow that is 35.75 m long. How tall is the tower? Round the nearest meter.

What is the difference of (4-5y) - 2 (3.5y-8) ?

What is 12 + 5x = - 6x + 23?

A color printer prints 7 pages in 3 minutes. How many minutes does it take per page? It takes 30 pounds of seed to completely plant a 5 acre field. How many pounds of seed are needed per acre?