Two numbers have a sum of 23 and a difference of 7.

Part A: Write a system of equations to model this situation.

Part B: Solve the system of equations for the two numbers.

Identify the terms and the like terms in this expression. 7 + a - 2 + 3a + b^2 Which statements are true? Check all that apply. a. The expression contains seven terms. b. The terms in the expression are 7, a, 2, 3a, b2. c. Constants are like terms.

Evaluate the expression below if b=4 and c = - 7. 2b - (c + b)

If m 1 equals (4x + 2) ° and m4 equals 110°, what is the value of x? A. 17 B. 28 C. 30 D. 32

Elio Makes candles that are 14 cm tall. Each candle burns eight hours before going out. He is wondering how many hours a 21 cm tall candle can burn for.

Write these numbers as fractions. Simplify the answers. 0.5, 12.3, 0.07, 0.625

Given w (x) = 3x+8, find w (2b+6)

A mountain climber ascended 3 4 of a kilometer in 1 12 of an hour. What was the mountain climber's ascent rate in kilometers per hour?

Niki uses 15 litres of water every minute when she has a shower. She uses 100 litres of water when she has a bath. How many litres of water does she save by having a 3 1/2 minute shower instead of a bath?

How long does it takes the earth to complete one full revolution? A. 90 B. 180 C. 365

What are two factors of 36 that add up to 15