A family is driving 550 miles to their grandmother's house. They have already driven 350 miles. Which equation shows the rate, r, in miles per hour, the family must be driven to reach their grandmother´s hour in 4 hours? A) 4r + 350= 550
B) 550 + 350= 4r
C) 4 + r + 350= 550
D) 550 - 350= r/4

554.4

step-by-step explanation:

44*12.6=544.4

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%

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb

lol 2

step-by-step explanation: