Mary and her brother John collect foreign coins. Mary has three times the number of coins that John has. Together they have 140 foreign coins.

What's negative 4 times negative 7

A grocery bag can withstand 300 n of force before it rips apart. how many kilograms of apples can it safely hold?

Find the value of the missing coefficient in the factored form of 8f^3-216g^3 8f^3-216g^3 = (2f-6g) (4f^2+? fg+36g^2) The value of? =

Each side of a square x units long is decreased by 9 units. which expression represents the area of the new square in square units?

Solve the equations. a 5.4:a=1.8:6.8 b 2.4: (0.5k) = 3.6:1 2/3

Write an example of an equation for an exponential decay function

A rectangular field is 125 meters long and 75 meters wide. Give the length and width of another rectangular field that has the same perimeter but a smaller area.

In a poll of the students in mrs. Rodriguez's class, six say they leave within six blocks of school. This amounted to 20% of the class, how many students are in Mrs. Rodriguez's class?

Can a quadralateral have four obtuse sides

What is the next term of the geometric sequence? 5, 15, 45,