Grade 9 Math
What is the value of x in the equation 2x + 5 = 15?
6
Simplify the expression 3(2x + 5) - 4(3x - 2).
-2x + 23
Find the value of y in the equation 4y - 7 = 25.
8.5
Solve the equation 3(x + 4) = 27.
9
What is the slope of the line passing through the points (2, 5) and (4, 9)?
2.5
Find the area of a triangle with base 8 cm and height 5 cm.
20 cm
If the radius of a circle is 4 cm, what is its circumference?
8π cm
What is the square root of 49?
7
Simplify the expression 2x² + 5x - 3x² + 4.
-x² + 2x + 4
Find the value of x in the equation 4(x - 3) = 12.
6