Which best describes the reasonableness of their solution?

Option A

Their estimate time is longer than time it will actually take.

Step-by-step explanation:

Given that,

number of hours Sandra takes to mow lawn = 45 minutes

                                                                                 = 0.75 hours

number of hours Kelly takes to mow lawn = 1 hour 15 minutes

                                                                             = 1.25 hours

Estimate time to mow lawn if both works together = 1 hour

1.25 + 0.75 /(1.25)(0.75)

2 / (1.25)(0.75)  

(for complete work take reciprocal)

(1.25)(0.75) / 2

0.47 hours < 1

the number of the people going.

step-by-step explanation:

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%