Answer: 48 minutes
Step-by-step explanation:
If there are 7 people painting 7 walls, we can assume that 1 person is painting 1 wall. Altogether they can each paint in 48 minutes.
If there are 20 people painting 20 walls, it would also equal 48 minutes because each person can paint in that time.
50 cm
If it grows 5 cm per year it would grow 50 cm in 10 years
Answer: 10 t -0.5 t is the total cost of the ticket for the group of 10 people after getting discount.
Where 10 t is the initial cost of ticket without discount and 0.5 t is the total discount.
Step-by-step explanation:
Here, t represents the cost of one ticket.
Therefore, For 10 person the cost of the ticket = 10 t
And, According to the question, there is a discount of 5% percent per ticket if a group buys 10 tickets.
Thus, the discount for the group of ten people = 5% of 10 t = 0.5 t
The the total cost for the group of ten people after getting the discount = 10 t - 0.5 t
Answer:
28. (H) 24 ft
30. (F) 
Step-by-step explanation:
28. A right triangle can be formed, where the length of the cable represents the hypotenuse, and the ground represents the base of the triangle. From the pythagorean theorem,

where a and b are legs, and c is the hypotenuse of a right triangle.
So

30. The probability of drawing a red 1 is
(a red star 1 or a red heart 1), the probability of drawing a black 3 is
(a black triangle 3 or a black circle 3), and the probability of drawing a six of hearts is
(since there is only one six of hearts in the entire deck). Since each of the cards is mutually exclusive from one another, the probability of drawing any of them is simply all of their probabilities added together. That is,

The answer will be 12413. Please mark me Brainliest