Me how i start and what the answer step by step

Area is base * height /2 perimeter is u add them all up I think

Area of a triangle = 1/2 * (base * height)
Base = 9.9 cm
Height = 4.9 cm
So, Area of Δ = 1 / 2 * (9.9 * 4.9)
Area of Δ = 1 / 2 * (48.51)
Area of Δ = 48.51 / 2
Area of Δ = 24.3 cm²

Perimeter = total distance round the Δ
Perimeter = a + b + c
Perimeter = 5.26 + 9.37 + 9.9
Perimeter = 24.53 cm

The type of triangle here is Scalene because all the sides are not equal. Therefore, it is a Scalene triangle.

Answer: the correct answer is 10step-by-step explanation: let the number be n, then the expression becomes,then“twelve more than the quotient of a number and two, decreased by four” iswhen n=4,we substitute 4 whetever we see n to get,we simplify to obtain,we further simplify to get,therefore the correct answer is c.