Akash treated his sister to lunch while visiting her in Castroville. Their lunch cost $20 and the sales tax in Castroville is 10%. If Akash left 15% tip on the $20 , how much in total did he pay.

about 0.75 hours

step-by-step explanation:

answer: 8d

step-by-step explanation:

45+5= 50+5=55+5=60

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours

27/4x^6 y^8

step-by-step explanation:

4(3x^2y^4)^3 (2x^3y^5)^4

=

108x^6 y^12 /16x^12 y^20

=

108 /16x^6 y^8

=

27 /4x^6 y^8