Question

plz help quickly and dont swamp​

Answer 1

Step-by-step explanation:

15)

25/25*100

% of girls= 60%

16)

9x²+6y+2+4x²+7y-5

13x²+13y-3

Answer 2

Answer:

19)

$i) \: 2(x + 4) = 12$

$2x + 4x = 12$

$6x = 12$

$x = \frac{12}{6}$

$x = 2$

$ii) \: \frac{5}{2} p \: = \: - 10$

$p = \frac{ - 10 \times 2}{5}$

$p = - 4$

The other answers are in attachment.

☺️☺️ Hope it helps you!!