Without the video or more information it's very difficult to help you out.
1. b. you use queria because if you say "quise" it means you stopped wanting to learn ballet sometime in the past.
2. b. you use conoci' because you've already met the professor in the past
Answer: D recaudaron fondos
Explanation:
This is due to the fact that recaudaron fondos means to raise money which is what they did
Answer:
El costo de cada artículo es:
chocolate: $8
dulce: $5
Explanation:
1c + 2d = 18
3c + 1d = 29
c = costo de cada chocolate
d = costo de cada dulce
Al multiplicar por -3 la primer ecuación y sumarla con la segunda ecuación:
-3c - 6d = -54
3c + 1d = 29
0 - 5d = -25
-5d = -25
d = 25/5
d = 5
1c + 2d = 18
1c + 2*5 = 18
c + 10 = 18
c = 18 - 10
c = 8
Comprobación:
3c + 1d = 29
3*8 + 5 = 29
24 + 5 = 29
