Mrqualyn needs help

25 minutes

Step-by-step explanation:

1 hour 15 minute ( 1 hour = 60 minutes)

60+15 = 75 minutes

75 minutes for play practice

Divide by 3 to get the amount of time for homework

75/3 = 25

25 minutes for homework

Time taken by Trevor to practice for the school play=1 hour 15 minutes=1.15 hours

Time taken by Trevor to finish his homework=1.15×3=3.45=3 hour 45 minutes

Hope it helps you

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.