What is 27=9-8 (1+5d)

Is y=3 a function and if so is it linear or nonlinear.

You roll a six-sided die. How likely is it that you roll a number greater than 6?

How can i find the factors of 12 and 15, explain?

Como resuelvo 8 (3a+6) = 9 (2a-4)

The city Music Hall charges $22.00 per adult and $10.00 per senior citizen. One day 461 people attended a concert. The total receipts this day were $6434.00. How many adults attended the concert? Your answer should be a number only.

The sum of three consecutive even numbers is 30. what are the smallest of these numbers

You buy a calculator for $65. A 6% sales tax is added. Write and solve an equation to find the total price, t.

A health club charges a $50 initial fee, plus $2 for each visit. Marsha has spent a total of $144 at the health club this year. Write and solve an equation to find how many visits she has made.

Prove that a natural number n is a multiple of 8 if and only if the number formed by the last 3 digits of n is a multiple of 8.

A train travelled a certain journey and is supposed to arrive at midday. When its average speed is 40km/h, it arrives at 1pm. When its average speed is 48km/h, it arrives at 11am. What is the length of the journey?