(07.05 hc)

the incorrect work of a student to solve an equation 2(y + 8) = 4y is shown below:

step 1: 2(y + 8) = 4y
step 2: 2y + 10 = 4y
step 3: 2y = 10
step 4: y = 5

which of the following explains how to correct step 2 and shows the correct value of y? (5 points)

select one:
a. the equation should be y + 8 = 4y after division by 2; y = 4
b. the equation should be y + 8 = 4y after division by 2; y = 6
c. 2 should be distributed as 2y + 16; y = 4
d. 2 should be distributed as 2y + 16; y = 8

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

1. an economy consists of three workers: larry, moe, and curly. each works 10 hours a day and can produce two services: mowing lawns and washing cars. in an hour, larry can either mow one lawn or wash one car; moe can either mow one lawn or wash two cars; and curly can either mow two lawns or wash one car. a. calculate how much of each service is produced under the following circumstances: a. all three spend all their time mowing lawns. b. all three spend all their time washing cars. c. all three spend half their time on each activity d. larry spends half of his time on each activity, while moe only washes cars and curly only mows lawns b. using your answers to part a, draw a production possibilities frontier and label points a, b, c, and d on your graph. explain why the production possibilities frontier has the shape it does. c. are any of the allocations calculated in part a inefficient? explain.