Simplify the expression 21b4 − 3b by combining like terms. 1. 18b5
2. 18b4
3. 21b4 − 3b
4. 18b3

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

Arectangle has a width of 9 units and length of 40 units. what is the length of a diognal. a. 31 unitsb. 39 unitsc. 41 units d. 49 units

Alogical argument that is presented in graphical form using boxes and arrows is called?