Step-by-step explanation:
Answer:
(a) 
(b) 7 hours.
Step-by-step explanation:
(a) Let x be the number of hours and y is the total cost.
We have been given that Beatrice and her friends charge $8 per hour of babysitting, so the charges for x hours of babysitting will be 8x.
As they also charge a mandatory $5 per day fee for each child for snacks, so the total charges for babysit each day will be charges for x hours of babysitting plus mandatory charge.
We can represent this information in an equation as:
Therefore, the equation represents the total cost of using Beatrice’s babysitting service each day.
(b) To find the number of hours Beatrice babysit the daughter, we will substitute y = 61 in our equation and solve for x.
Let us subtract 5 from both sides of our equation.
Let us divide both sides of our equation by 8.
Therefore, Beatrice babysit 7 hours the daughter.
Expression for part c is missing.
Area is equal to length*width so doing the math 12*9= 108, so the blue paper has an area of 108in^2 while the red paper has an area of 90in^2 meaning that the blue piece of paper is the larger one.
Answer:
A) coral reefs provide unique habitats for fish
Step-by-step explanation:
Coral bleaching can be hazardous to some fish species because
A) coral reefs provide unique habitats for fish
B) decomposition of corals can lead to ocean acidification
C) the dead corals attract predators that feed on the fish
D) the corals are the primary source of O2O2 in ocean water
Solution:
Coral bleaching is process in which corals are stressed as a result of changes temperature, light, or nutrients causing them to turn completely white. Coral reefs are is a very diverse ecosystems with ecological and economic value.
Coral reefs are a very important habitat for the fishes providing home to about 25% of fishes. The coral reefs are used for shelter during the day, and as a hunting ground by night.
Answer:
A and B
Step-by-step explanation:
on edge 2020
