Solve: (235 x 235 + 235 x 330 + 165 x 165) ÷ 400.

The slope (gradient) of the line Ax - By = 8 is ¾. What is A - B? 

The minimum value of x in $$Ax^2+Bx+4$$ is $$\frac{1}{4}$$ . What is $$\frac{A}{B}$$ ?

Operation ¤ is defined as (a ¤ b) = a + b . What is $$\left(\frac{1}{s}¤\ \frac{1}{t}\right)$$  if s and t are the roots of the equation $$5x^2+6x+1=0$$ ?

If the remote interior angles of a triangle are each increased by 15 degrees, by how much would the exterior angle of the triangle changed?

What is the measure of the angle supplementary to the complement of 45.60°?

Two diagonally opposite points of the square have coordinates (1, 3) and (- 5, -5). What is the area of the square?

There are 5 direct flights from Manila to Roxas. 3 bus schedules from Manila to Romblon and 4 ship schedules from Romblon to Roxas. How many ways can a person travel from Manila to Roxas?

In a drawer, there are 10 pairs of red socks, 8 pairs of blue socks, 6 pairs of green socks, and 12 pairs of black socks. Lisa wants to ensure she gets at least one pair of red socks and one pair of blue socks. How many socks should she pull out at least to guarantee fulfilling her requirement?

How many terminal zeroes are there in the standard form of 2024!?

Mrs. Kang has three daughters, namely Bussaba, Chaem, and Charoen and 2 sons, namely Aran and Atid. She asked them to sit around a circular table. How many ways could they arrange themselves around the table such that Bussaba and Atid always sit beside each other?

How many 2-digit numbers divisible by 3 can be formed using the digits 4, 5, 6, 8, and 9 if repetition of digits is allowed?

How many positive integer solutions (𝑥,𝑦) does $$\frac{1}{x}+\frac{1}{y}=\frac{1}{9}$$ have?