Match the following. 1. a letter or symbol used to represent an unknown number. ___ formula

2. one term or multiple terms connected by an addition or subtraction sign. ___ expression

3. a number or a variable, or the product of a number and variable(s). ___ constant

4. an equation that uses variables to state a rule. ___ variable

5 a number; a term containing no variables. term​

The first five terms of a linear sequence are given below. 7 , 12 , 17, 22 , 27 , what is the next term of the sequence?

Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9

Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?