#11. Write "the product of 3 and the sum of a number and 5" as an algebraic expression

The product of three is the same as [ * 3 ]

The sum of a number and five is the same as [ n + 5 ]

[ 3 ] is being multiplied to the sum of [ n + 5 ], so, we can write this using the distributive property [ a(b + c) ]

Put the expression together:

3(n + 5)

Best of Luck!

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

b, i believe, but not sure.