A jar contains n nickels and d dimes. There is a total of 278 coins in the jar. The value of the coins is $18.00. How many nickels and how many dimes are in the jar?

This skateboard ramp has two ladders. On ladder is 40 feet high and the other is 24 feet high. The distance from the top of the taller ladder to the end of the ramp is 200 feet.

A scuba diver is 3.8 meters below the surface of the water. He is descending at a rate of 0.5 meters per minute. Part 1: Write an algebraic expression to describe the depth of the scuba diver after any number of minutes.

Hannah is designing containers to hold 300 cm3 of juice. Which container is more efficient?

a baby elephant that is 4ft y'all casts a shadow that is 8ft long. Find the height of a petrified stump that casts a 12ft shadow

Melissa, Juan, and Rafael served a total of 74 orders Monday at the school cafeteria. Rafael served 2 times as many orders as Juan. Melissa served 6 more orders than Juan. How many orders did they each serve?

He product of a non-zero rational number and an irrational number can always be written as a) a fraction. b) a terminating decimal. c) a non-repeating, non-terminating decimal. d) a repeating decimal

Who has the right to levy taxes on the income of individuals and businesses by the ruling of the 16th Amendment of the Constitution that was signed into law in 1913? A. Congress B. The governor C. The president D. The Supreme Court

X - 7 = 18 isn't this 25

If the square of twice a number is 81, what is the number? I tried doing 2x^2=81 but that did not come out to the answer 4.5,-4.5

How many 30 degree turns does it take to make a full circle