Which of these is an open sentence?

1. 10-2=8

2. 12+2=15

3. n-3=7

4. 3-3=0

The Celsius (C) and Kelvin (K) conversion of temperature is given by the formula, K = C + 273. If an acid solution is required to be kept between - 10ºC and 5ºC, what is the range of temperature in Kelvin?

What figure can be formed by a vertical slice perpendicular to the bases of a cylinder

Simplify the problem 7x+4 (6-x) + 28

A rectangular park is 56 mi wide and 157 mi long. What is the area of the park as a mixed number simplest form? Enter your answer in the box.

What is 7 √75 simplified?

What number is 100,000 more than 75,000 and explain how u got answer

3 times a number decreased by 40 equals 14

An exceptionally bright high school student has applied for two scholarships: a merit scholarship and an athletic scholarship. He estimates the following probabilities: The probability of getting the merit scholarship is 0.

A boy bought 9 new cards to add to his card collection of 25 cards. The next day his dog ate half of his collection. How many cards does he have left?

Lucys pet snake eats 2 mice twice a week how many mice will the snake eat in 6 weeks