Please, help me!! please!

64,26

Step-by-step explanation:

The sum of the angles of a triangle add to 180 degrees

The box means its is a 90 degree angle

90 + 2x+ x-6 = 180

Combine like terms

84+3x = 180

Subtract 84 from each side

84+3x-84 = 180-84

3x=96

Divide by 3

3x/3 = 96/3

x = 32

The top angle is

2x = 2*32 = 64

The bottom right angle is x-6

32-6 = 26

a) 11550

b)35%

Step-by-step explanation:

Hi, to answer this question, first, we have to multiply the stadium capacity by the percentage in decimal form (75/100)

a)15400 x (75/100) = 11,550

For b), we know that 15400 is the 100% of the capacity, so, for 20790 the percentage will be:

15400/100= 20790/x

Solving for x

x= 20790 / 154

x= 135%  

135%-100% = 35%

The percentage increase in the number of seats will be 35%