Problem 18
Find each sum without the use of a number line. $$-1.5+(-5.3)$$
Problem 18
In Exercises \(1-34,\) perform the indicated multiplication. $$-\frac{5}{11} \cdot \frac{2}{7}$$
Problem 20
Identify each natural number as prime or composite. If the number is composite, find its prime factorization. $$100$$
Problem 21
Use the commutative property of multiplication to write an equivalent algebraic expression. $$5(x+3)$$
Problem 21
Express each rational number as a decimal. $$\frac{3}{4}$$
Problem 31
Write each English phrase as an algebraic expression. Let the variable \(x\) represent the number. nine subtracted from a number
Problem 32
Write each English phrase as an algebraic expression. Let the variable \(x\) represent the number. three subtracted from a number
Problem 45
Use a form of the distributive property to rewrite each algebraic expression without parentheses. $$5(3 x-2+4 y)$$
Problem 49
Simplify each algebraic expression. $$11 a-3 a$$
Problem 50
Use the order of operations to simplify each expression. $$3[4+3(10-8)]$$