Question 16 Lucy spent $15 on supplies to make bracelets. She sold each bracelet for $1.25. Which function describes the profit Lucy made, in dollars, on x bracelets sold?

A
P(x)=1.25x+15

B
P(x)=15x+1.25

C
P(x)=15x−1.25

D
P(x)=1.25x−15

9514 1404 393

  D  P(x)=1.25x−15

Step-by-step explanation:

Profit is the difference between revenue (1.25x) and cost (15). The equation for it will be ...

  P(x)=1.25x−15

The P(draw a black card) is 3/10.

Step-by-step explanation:

It is given that the deck contains 3 black cards and 7 red cards.

Therefore, the total number of cards in the deck = 7 red + 3 black = 10 cards.

Now, we need to find the possible outcomes of getting a black card. So, the number of black cards in the deck = 3 black cards.

The formula to find the probability is given by :

Probability = Number of required event / Total number of outcomes.

Here, the required event is getting a black card out of 10 cards in the deck.

Probability (to draw black card) = 3/10.